Toxicity to foraging honeybees, apis-mellifera, of endosulfan, malathion and azinphos-methyl applied to flowering oil seed rape, brassica-napus

Needham, P. H. and Stevenson, J. H. 1973. Toxicity to foraging honeybees, apis-mellifera, of endosulfan, malathion and azinphos-methyl applied to flowering oil seed rape, brassica-napus. Annals of Applied Biology - AAB. 75 (2), pp. 235-240. https://doi.org/10.1111/j.1744-7348.1973.tb07303.x

Related outputs

'To preserve his inward peace': Sir John Wittewronge's Discourse of 1664

A - Papers appearing in refereed journals

Harcourt Williams, M. and Stevenson, J. H. 2009. 'To preserve his inward peace': Sir John Wittewronge's Discourse of 1664. Proceedings of the Huguenot Society. 29, pp. 203-219.

Pesticide risk to bee pollinators

G - Articles in popular magazines and other technical publications

Lewis, G., Stevenson, J. H. and Williams, I. H. 2002. Pesticide risk to bee pollinators.

'Observations of Weather' The Weather Diary of Sir John Wittewronge of Rothamsted 1684-89 (Hertfordshire Records Publications, Vol. 15)

G - Articles in popular magazines and other technical publications

Williams, M. H., Stevenson, J. H., Jenkyn, J. F., Prew, R. D. and Roach, W. 1999. 'Observations of Weather' The Weather Diary of Sir John Wittewronge of Rothamsted 1684-89 (Hertfordshire Records Publications, Vol. 15).

Seed and pod development of autumn-sown, determinate white lupins (Lupinus albus ) in relation to the assimilation and distribution of dry matter and nitrogen in crops grown at different densities

A - Papers appearing in refereed journals

Milford, G. F. J., Shield, I. F., Stevenson, J. H., Scott, T. and Leach, J. E. 1999. Seed and pod development of autumn-sown, determinate white lupins (Lupinus albus ) in relation to the assimilation and distribution of dry matter and nitrogen in crops grown at different densities. The Journal of Agricultural Science. 133, pp. 141-150. https://doi.org/10.1017/S0021859699006826

Effects of high plant populations on the growth and yield of winter oilseed rape (Brassica napus )

A - Papers appearing in refereed journals

Leach, J. E., Stevenson, J. H., Rainbow, A. J. and Mullen, L. A. 1999. Effects of high plant populations on the growth and yield of winter oilseed rape (Brassica napus ). The Journal of Agricultural Science. 132, pp. 173-180. https://doi.org/10.1017/S0021859698006091

Effect of sowing date and planting density on the structure and yield of autumn-sown, florally-determinate white lupins (Lupinus albus) in the United Kingdom

A - Papers appearing in refereed journals

Shield, I. F., Stevenson, J. H., Leach, J. E., Scott, T., Day, J. M. and Milford, G. F. J. 1996. Effect of sowing date and planting density on the structure and yield of autumn-sown, florally-determinate white lupins (Lupinus albus) in the United Kingdom. The Journal of Agricultural Science. 127 (2), pp. 183-191. https://doi.org/10.1017/S0021859600077960

Sowing the seeds of international success

G - Articles in popular magazines and other technical publications

Stevenson, J. H. 1993. Sowing the seeds of international success. Chemistry in Britain. 29, pp. 755-758.

150 years of progress

G - Articles in popular magazines and other technical publications

Atkin, R. K. and Stevenson, J. H. 1993. 150 years of progress. Shell agriculture. 16, pp. 12-15.

Rothamsted Experimental Station: 150 years of agricultural research

G - Articles in popular magazines and other technical publications

Leigh, R. A. and Stevenson, J. H. 1993. Rothamsted Experimental Station: 150 years of agricultural research. Biologist. 40, pp. 217-220.

Development of field trial methodology to assess short-term effects of pesticides on beneficial arthropods in arable crops.

A - Papers appearing in refereed journals

Smart, L. E., Stevenson, J. H. and Walters, J. H. H. 1989. Development of field trial methodology to assess short-term effects of pesticides on beneficial arthropods in arable crops. Crop Protection. 8, pp. 169-180.

Rothamsted : a cradle of agricultural research.

G - Articles in popular magazines and other technical publications

Stevenson, J. H. 1989. Rothamsted : a cradle of agricultural research. Plants Today. 2 (3), pp. 84-89.

Effectiveness of different spraying systems in winter wheat and biological effects on target and non-target organisms.

A - Papers appearing in refereed journals

Cayley, G. R., Griffiths, D. C., Pye, B. J., Smart, L. E., Stevenson, J. H. and Walters, J. H. H. 1987. Effectiveness of different spraying systems in winter wheat and biological effects on target and non-target organisms. Agriculture, Ecosystems & Environment. 19, pp. 211-221.

Accurate estimation of invertebrate density in cereals.

G - Articles in popular magazines and other technical publications

Sunderland, K. D., Hawkes, C., Stevenson, J. H., Mcbride, T., Smart, L. E., Sopp, P. I., Powell, W., Chambers, R. J. and Carter, O. C. R. 1987. Accurate estimation of invertebrate density in cereals. Bulletin IOBC/WPRS/SROP . 10, pp. 71-81.

Toxicity and hazard of pesticides to honeybees : Harmonization of test methods.

G - Articles in popular magazines and other technical publications

Felton, J. C., Oomen, P. A. and Stevenson, J. H. 1986. Toxicity and hazard of pesticides to honeybees : Harmonization of test methods. Bee World. 67, pp. 114-124.

Effects of storage and pesticide treatments on honey bee brain acetyl cholinesterase activities

A - Papers appearing in refereed journals

Westlake, G. E., Hardy, A. R. and Stevenson, J. H. 1985. Effects of storage and pesticide treatments on honey bee brain acetyl cholinesterase activities. Bulletin Of Environmental Contamination And Toxicology. 34 (5), pp. 668-675. https://doi.org/10.1007/bf01609791

Pesticides and honey bees - toxicity in the laboratory, and hazard in the field

A - Papers appearing in refereed journals

Stevenson, J. H. 1983. Pesticides and honey bees - toxicity in the laboratory, and hazard in the field. Pesticide Science. 14 (6), pp. 636-637.

Insecticidal activity of the pyrethrins and related-compounds .14. Selectivity of pyrethroid insecticides between ephestia-kuhniella and its parasite venturia-canescens

A - Papers appearing in refereed journals

Elliott, M., Janes, N. F., Stevenson, J. H. and Walters, J. H. H. 1983. Insecticidal activity of the pyrethrins and related-compounds .14. Selectivity of pyrethroid insecticides between ephestia-kuhniella and its parasite venturia-canescens. Pesticide Science. 14 (4), pp. 423-426. https://doi.org/10.1002/ps.2780140412

Factors affecting the hazard of pesticides to honeybees

A - Papers appearing in refereed journals

Stevenson, J. H. 1983. Factors affecting the hazard of pesticides to honeybees. Bee World. 64 (3), pp. 117-121. https://doi.org/10.1080/0005772x.1983.11097927

Evaluation of pesticides for use with biological-control

A - Papers appearing in refereed journals

Stevenson, J. H. and Walters, J. H. H. 1983. Evaluation of pesticides for use with biological-control. Agriculture, Ecosystems & Environment. 10 (2), pp. 201-215. https://doi.org/10.1016/0167-8809(83)90062-2

Identification of poisoning by triazophos in honeybees

A - Papers appearing in refereed journals

Findlay, E., Smart, L. E. and Stevenson, J. H. 1982. Identification of poisoning by triazophos in honeybees. Journal of Apicultural Research. 21 (4), pp. 226-231. https://doi.org/10.1080/00218839.1982.11100547

Laboratory estimation of toxicity of pyrethroid insecticides to honeybees - relevance to hazard in the field

A - Papers appearing in refereed journals

Smart, L. E. and Stevenson, J. H. 1982. Laboratory estimation of toxicity of pyrethroid insecticides to honeybees - relevance to hazard in the field. Bee World. 63 (4), pp. 150-152. https://doi.org/10.1080/0005772x.1982.11097888

Detection of starvation as the cause of death in honeybees, from thoracic glucose-levels

A - Papers appearing in refereed journals

Greenway, A. R., Smart, L. E., Simpson, J., Smith, M. C. and Stevenson, J. H. 1981. Detection of starvation as the cause of death in honeybees, from thoracic glucose-levels. Journal of Apicultural Research. 20 (3), pp. 180-183. https://doi.org/10.1080/00218839.1981.11100494

Fertiliser recommendations for arable crops

A - Papers appearing in refereed journals

Needham, P. H. 1980. Fertiliser recommendations for arable crops. Journal of the Science of Food and Agriculture. 31, p. 1082.

Oil seed rape and honeybee poisoning - 1978 1979

A - Papers appearing in refereed journals

Stevenson, J. H., Smart, L. E. and Walker, J. 1979. Oil seed rape and honeybee poisoning - 1978 1979. Proceedings of the British Crop Protection Council. 10, pp. 117-120.

Pre-flowering and post-flowering insecticide applications to control aphis-fabae on field beans - their biological and economic effectiveness

A - Papers appearing in refereed journals

Bardner, R., Fletcher, K. E. and Stevenson, J. H. 1978. Pre-flowering and post-flowering insecticide applications to control aphis-fabae on field beans - their biological and economic effectiveness. Annals of Applied Biology - AAB. 88 (2), pp. 265-271. https://doi.org/10.1111/j.1744-7348.1978.tb00705.x

Acute toxicity of unformulated pesticides to worker honey bees (apis-mellifera l)

A - Papers appearing in refereed journals

Stevenson, J. H. 1978. Acute toxicity of unformulated pesticides to worker honey bees (apis-mellifera l). Plant Pathology. 27 (1), pp. 38-40. https://doi.org/10.1111/j.1365-3059.1978.tb01070.x

Laboratory techniques for evaluating insecticides for aphid control and their application to studies on resistance

A - Papers appearing in refereed journals

Needham, P. H. and Devonshire, A. L. 1977. Laboratory techniques for evaluating insecticides for aphid control and their application to studies on resistance. International Conference on the Evaluation of Biological Activity .

Evaluation of pyrethroids for insect control

A - Papers appearing in refereed journals

Burt, P. E., Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Stevenson, J. H. 1977. Evaluation of pyrethroids for insect control. Crop Protection Agents Their Biological Evaluation. August.

Nitrogen requirement of cereals .2. Multilevel nitrogen tests with spring barley in southwestern England

A - Papers appearing in refereed journals

Needham, P. H. and Boyd, D. A. 1976. Nitrogen requirement of cereals .2. Multilevel nitrogen tests with spring barley in southwestern England. The Journal of Agricultural Science. 87 (AUG), pp. 163-170. https://doi.org/10.1017/s002185960002671x

Nitrogen requirement of cereals .1. Response curves

A - Papers appearing in refereed journals

Boyd, D. A., Yuen, L. T. K. and Needham, P. H. 1976. Nitrogen requirement of cereals .1. Response curves. The Journal of Agricultural Science. 87 (1), pp. 149-162. https://doi.org/10.1017/s0021859600026708

Insecticidal activity of pyrethrins and related compounds .10. 5-benzyl-3-furylmethyl 2,2-dimethylcyclopropanecarboxylates with ethylenic substituents at position 3 on cyclopropane ring

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Pulman, D. A. 1976. Insecticidal activity of pyrethrins and related compounds .10. 5-benzyl-3-furylmethyl 2,2-dimethylcyclopropanecarboxylates with ethylenic substituents at position 3 on cyclopropane ring. Pesticide Science. 7 (5), pp. 499-502. https://doi.org/10.1002/ps.2780070512

Insecticidal activity of pyrethrins and related compounds .9. 5-benzyl-3-furylmethyl 2,2-dimethylcyclopropanecarboxylates with non-ethylenic substituents at position 3 on cyclopropane ring

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Pulman, D. A. 1976. Insecticidal activity of pyrethrins and related compounds .9. 5-benzyl-3-furylmethyl 2,2-dimethylcyclopropanecarboxylates with non-ethylenic substituents at position 3 on cyclopropane ring. Pesticide Science. 7 (5), pp. 492-498. https://doi.org/10.1002/ps.2780070511

Insecticidal activity of pyrethrins and related compounds .8. Relation of polarity with activity in pyrethroids

A - Papers appearing in refereed journals

Briggs, G. G., Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H., Pulman, D. A. and Young, S. R. 1976. Insecticidal activity of pyrethrins and related compounds .8. Relation of polarity with activity in pyrethroids. Pesticide Science. 7 (3), pp. 236-240. https://doi.org/10.1002/ps.2780070305

Beneficial insects present on a motorway verge

A - Papers appearing in refereed journals

Free, J. B., Gennard, D., Stevenson, J. H. and Williams, I. H. 1975. Beneficial insects present on a motorway verge. Biological Conservation. 8 (1), pp. 61-72. https://doi.org/10.1016/0006-3207(75)90079-8

Resistance to organophosphorus insecticides of peach-potato aphid (Myzus persicae) from sugarbeet in 1975

A - Papers appearing in refereed journals

Devonshire, A. L. and Needham, P. H. 1975. Resistance to organophosphorus insecticides of peach-potato aphid (Myzus persicae) from sugarbeet in 1975. Proceedings of the British Insecticide and Fungicide Conference. 8.

Monitoring for resistance to organophosphorus insecticides in Myzus persicae from sugarbeet

A - Papers appearing in refereed journals

Devonshire, A. L., Needham, P. H., Rice, A. D. and Sawicki, R. M. 1975. Monitoring for resistance to organophosphorus insecticides in Myzus persicae from sugarbeet. Proceedings of the British Insecticide and Fungicide Conference. 8.

Resistance to some organophosphorus insecticides in field populations of myzus-persicae from sugar-beet in 1974

A - Papers appearing in refereed journals

Needham, P. H. and Devonshire, A. L. 1975. Resistance to some organophosphorus insecticides in field populations of myzus-persicae from sugar-beet in 1974. Pesticide Science. 6 (5), pp. 547-551. https://doi.org/10.1002/ps.2780060516

Insecticidal activity of pyrethrins and related compounds .7. Insecticidal dihalovinyl analogues of cis-chrysanthemates and trans-chrysanthemates

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Pulman, D. A. 1975. Insecticidal activity of pyrethrins and related compounds .7. Insecticidal dihalovinyl analogues of cis-chrysanthemates and trans-chrysanthemates. Pesticide Science. 6 (5), pp. 537-542. https://doi.org/10.1002/ps.2780060514

Bee poisoning by insecticides in Britain 1966-1973

A - Papers appearing in refereed journals

Walker, J. and Stevenson, J. H. 1974. Bee poisoning by insecticides in Britain 1966-1973. Bee World. 55 (2), pp. 64-67.

Bee poisoning by insecticides in Britain 1966–1973

A - Papers appearing in refereed journals

Stevenson, J. H. and Walker, J. 1974. Bee poisoning by insecticides in Britain 1966–1973. Bee World. 55 (2), pp. 64-67. https://doi.org/10.1080/0005772X.1974.11097499

Work of the Insecticide Department - Rothamsted

A - Papers appearing in refereed journals

Graham-Bryce, I. J., Elliott, M., Sawicki, R. M., Greenway, A. R., Griffiths, D., Scott, G., Jeffs, J., Mudd, A., Stevenson, J. H., Mcintosh, A. H. and Phillips, F. 1974. Work of the Insecticide Department - Rothamsted. Chemistry & Industry.

Synthetic insecticide with a new order of activity

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Pulman, D. A. 1974. Synthetic insecticide with a new order of activity. Nature. 248 (5450), pp. 710-711. https://doi.org/10.1038/248710a0

Pyrethrins and related compounds .XIX. Geometrical and optical isomers of 2,2-dimethyl-3-(2,2-dichlorovinyl)-cyclopropanecarboxylic acid and insecticidal esters with 5-benzyl-3-furylmethyl and 3-phenoxybenzyl alcohols

A - Papers appearing in refereed journals

Burt, P. E., Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Pulman, D. A. 1974. Pyrethrins and related compounds .XIX. Geometrical and optical isomers of 2,2-dimethyl-3-(2,2-dichlorovinyl)-cyclopropanecarboxylic acid and insecticidal esters with 5-benzyl-3-furylmethyl and 3-phenoxybenzyl alcohols. Pesticide Science. 5 (6), pp. 791-799. https://doi.org/10.1002/ps.2780050614

Insecticidally active conformations of pyrethroids

B - Book chapters etc edited externally

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Pulman, D. A. 1974. Insecticidally active conformations of pyrethroids. in: Kohn, G. K. (ed.) ACS Symposium Series, Vol. 2, Mechanism of Pesticide Action Washington, D.C. American Chemical Soc..

Insecticidally active conformations of pyrethroids

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Pulman, D. A. 1974. Insecticidally active conformations of pyrethroids. Abstracts of Papers of the American Chemical Society.

Insecticidal activity of pyrethrins and related compounds .6. Methyl-furfuryl, alkenyl-furfuryl, and benzyl-furfuryl and benzyl-3-furylmethyl chrysanthemates

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F. and Needham, P. H. 1974. Insecticidal activity of pyrethrins and related compounds .6. Methyl-furfuryl, alkenyl-furfuryl, and benzyl-furfuryl and benzyl-3-furylmethyl chrysanthemates. Pesticide Science. 5 (4), pp. 491-496. https://doi.org/10.1002/ps.2780050413

Fate of some organophosphorus compounds applied topically to peach-potato aphids (myzus-persicae (sulz)) resistant and suceptible to insecticides

A - Papers appearing in refereed journals

Devonshire, A. L. and Needham, P. H. 1974. Fate of some organophosphorus compounds applied topically to peach-potato aphids (myzus-persicae (sulz)) resistant and suceptible to insecticides. Pesticide Science. 5 (2), pp. 161-169. https://doi.org/10.1002/ps.2780050206

NRDC 143, a more stable pyrethroid

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H., Pulman, D. A. and Stevenson, J. H. 1973. NRDC 143, a more stable pyrethroid. Proceedings of the British Insecticide and Fungicide Conference. 7.

A technique for applying small drops of insecticide solution to Myzus persicae (sulz.)

A - Papers appearing in refereed journals

Needham, P. H. and Devonshire, A. L. 1973. A technique for applying small drops of insecticide solution to Myzus persicae (sulz.). Pesticide Science. 4 (1), pp. 107-111. https://doi.org/10.1002/ps.2780040115

A self-powered portable insect suction sampler and its use to assess effects of azinphos methyl and endosulfan on blossom beetle populations on oil seed rape

A - Papers appearing in refereed journals

Arnold, A. J., Needham, P. H. and Stevenson, J. H. 1973. A self-powered portable insect suction sampler and its use to assess effects of azinphos methyl and endosulfan on blossom beetle populations on oil seed rape. Annals of Applied Biology - AAB. 75 (2), pp. 229-233. https://doi.org/10.1111/j.1744-7348.1973.tb07302.x

Potent pyrethroid insecticides from modified cyclopropane acids

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Pulman, D. A. 1973. Potent pyrethroid insecticides from modified cyclopropane acids. Nature. 244 (5416), pp. 456-457. https://doi.org/10.1038/244456a0

A photostable pyrethroid

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H., Pulman, D. A. and Stevenson, J. H. 1973. A photostable pyrethroid. Nature. 246 (5429), pp. 169-170. https://doi.org/10.1038/246169a0

Insecticides and beekeeping in England

A - Papers appearing in refereed journals

Stevenson, J. H. 1972. Insecticides and beekeeping in England. Lecture given to the Central Association of Beekeepers on February 9th 1972.

Bee poisoning in England and Wales, 1971

A - Papers appearing in refereed journals

Stevenson, J. H. 1972. Bee poisoning in England and Wales, 1971. Bee World. 53 (3), p. 113.

Factors affecting the performance of granular insecticides applied to field beans

A - Papers appearing in refereed journals

Graham-Bryce, I. J., Stevenson, J. H. and Etheridge, P. 1972. Factors affecting the performance of granular insecticides applied to field beans. Pesticide Science. 3 (6), pp. 781-797. https://doi.org/10.1002/ps.2780030615

Insecticidal activity of the pyrethrins and related compounds V. toxicity of the methylbenzyl chrysanthemates to houseflies (Musca domestica) and mustard beetles (Phaedon cochleariae)

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Ford, M. G., Janes, N. F. and Needham, P. H. 1972. Insecticidal activity of the pyrethrins and related compounds V. toxicity of the methylbenzyl chrysanthemates to houseflies (Musca domestica) and mustard beetles (Phaedon cochleariae). Pesticide Science. 3 (1), pp. 25-28. https://doi.org/10.1002/ps.2780030105

Bee poisoning in 1970

A - Papers appearing in refereed journals

Stevenson, J. H. 1971. Bee poisoning in 1970. Bee World. 52 (2), pp. 75-76.

Insecticidal activity of the pyrethrins and related compounds IV.—Essential features for insecticidal activity in chrysanthemates and related cyclopropane esters

A - Papers appearing in refereed journals

Barlow, F., Elliott, M., Farnham, A. W., Hadaway, A. B., Janes, N. F., Needham, P. H. and Wickham, J. C. 1971. Insecticidal activity of the pyrethrins and related compounds IV.—Essential features for insecticidal activity in chrysanthemates and related cyclopropane esters. Pesticide Science. 2 (3), pp. 115-118. https://doi.org/10.1002/ps.2780020306

Bees in agriculture - Bee poisoning in 1969

A - Papers appearing in refereed journals

Needham, P. H. and Stevenson, J. H. 1970. Bees in agriculture - Bee poisoning in 1969. Bee World. 51 (2), pp. 62-62. https://doi.org/10.1080/0005772X.1970.11097295

Bee poisoning in 1966

A - Papers appearing in refereed journals

Needham, P. H. and Stevenson, J. H. 1970. Bee poisoning in 1966. Bee World. 48 (1), p. 7.

Comparison of the biology of Myzus persicae Sulz. resistant and susceptible to dimethoate

A - Papers appearing in refereed journals

Banks, C. J. and Needham, P. H. 1970. Comparison of the biology of Myzus persicae Sulz. resistant and susceptible to dimethoate. Annals of Applied Biology - AAB. 66 (3), pp. 465-468. https://doi.org/10.1111/j.1744-7348.1970.tb04625.x

Laboratory and field assessment of pesticide poisoning of honeybees Apis Mellifera

A - Papers appearing in refereed journals

Stevenson, J. H. 1969. Laboratory and field assessment of pesticide poisoning of honeybees Apis Mellifera. Proceedings of the British Insecticide and Fungicide Conference. 5.

Insecticidal activity of pyrethrins and related compounds. 2. Relative toxicity of esters from optical and geometrical isomers of chrysanthemic, pyrethric and related acids and optical isomers of cinerolone and allethrolone

A - Papers appearing in refereed journals

Elliott, M., Needham, P. H. and Potter, C. 1969. Insecticidal activity of pyrethrins and related compounds. 2. Relative toxicity of esters from optical and geometrical isomers of chrysanthemic, pyrethric and related acids and optical isomers of cinerolone and allethrolone. Journal of the Science of Food and Agriculture. 20 (9), pp. 561-565. https://doi.org/10.1002/jsfa.2740200911

Laboratory studies on the acute contact and oral toxicities of insecticides to honeybees

A - Papers appearing in refereed journals

Stevenson, J. H. 1968. Laboratory studies on the acute contact and oral toxicities of insecticides to honeybees. Annals of Applied Biology - AAB. 61 (3), pp. 467-472. https://doi.org/10.1111/j.1744-7348.1968.tb04548.x

The secretion of the systemic insecticides dimethoate and phorate into nectar

A - Papers appearing in refereed journals

Lord, K. A., May, M. A. and Stevenson, J. H. 1968. The secretion of the systemic insecticides dimethoate and phorate into nectar. Annals of Applied Biology - AAB. 61 (1), pp. 19-27. https://doi.org/10.1111/j.1744-7348.1968.tb04506.x

The Value of a Fluorescent Tracer in Determining the Quantity of Dieldrin on Honeybees Foraging in a Sprayed Crop

A - Papers appearing in refereed journals

Cooper, B. A., Needham, P. H. and Stevenson, J. H. 1968. The Value of a Fluorescent Tracer in Determining the Quantity of Dieldrin on Honeybees Foraging in a Sprayed Crop. Journal of Apicultural Research. 7 (1), pp. 47-50. https://doi.org/10.1080/00218839.1968.11100187

Bee poisoning in 1968

A - Papers appearing in refereed journals

Needham, P. H. and Stevenson, J. H. 1967. Bee poisoning in 1968. Bee World. 50 (1).

Bee poisoning in 1967

A - Papers appearing in refereed journals

Needham, P. H. and Stevenson, J. H. 1967. Bee poisoning in 1967. Bee World. 48 (4).

The effect on honeybee mortality of applying insecticides as sprays or granules to flowering field beans

A - Papers appearing in refereed journals

Free, J. B., Needham, P. H., Racey, P. A. and Stevenson, J. H. 1967. The effect on honeybee mortality of applying insecticides as sprays or granules to flowering field beans. Journal of the Science of Food and Agriculture. 18 (4), pp. 133-138. https://doi.org/10.1002/jsfa.2740180401

New synthetic insecticidal compounds related to pyrethrins

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H., Pearson, B. C. and Stevenson, J. H. 1967. New synthetic insecticidal compounds related to pyrethrins. British Insecticide And Fungicide Conference. 4 (437).

5-Benzyl-3-furylmethyl Chrysanthemate: a New Potent Insecticide

A - Papers appearing in refereed journals

Elliott, M., Farnham, A. W., Janes, N. F., Needham, P. H. and Pearson, B. C. 1967. 5-Benzyl-3-furylmethyl Chrysanthemate: a New Potent Insecticide. Nature. 213 (5075), pp. 493-&. https://doi.org/10.1038/213493a0

A method of obtaining active worker honeybees in winter for experimental use

A - Papers appearing in refereed journals

Stevenson, J. H. 1966. A method of obtaining active worker honeybees in winter for experimental use. Journal of Apicultural Research. 5 (1), pp. 63-64. https://doi.org/10.1080/00218839.1966.11100134

Insecticides and beekeeping in England and Wales

A - Papers appearing in refereed journals

Needham, P. H. and Stevenson, J. H. 1966. Insecticides and beekeeping in England and Wales. Bee World. 47 (2), pp. 65-70. https://doi.org/10.1080/0005772X.1966.11095355

Damage to honey bee colonies (Apis mellifera) by insecticides in Great Britain, 1956–65

A - Papers appearing in refereed journals

Needham, P. H., Solly, S. R. B. and Stevenson, J. H. 1966. Damage to honey bee colonies (Apis mellifera) by insecticides in Great Britain, 1956–65. Journal of the Science of Food and Agriculture. 17 (3), pp. 133-137. https://doi.org/10.1002/jsfa.2740170308

A preliminary survey of variation in susceptibility of Myzus persicae, associated with sugar beet, to organophosphorous insecticides

A - Papers appearing in refereed journals

Needham, P. H. and Dunning, R. A. 1965. A preliminary survey of variation in susceptibility of Myzus persicae, associated with sugar beet, to organophosphorous insecticides. Proceedings of the British Insecticide and Fungicide Conference. 3 (1), pp. 46-51.

New pyrethrin-like esters with high insecticidal activity

A - Papers appearing in refereed journals

Elliott, M., Janes, N. F., Jeffs, K. A., Needham, P. H. and Sawicki, R. M. 1965. New pyrethrin-like esters with high insecticidal activity. Nature. 207 (5000), pp. 938-940. https://doi.org/10.1038/207938a0

Pyrethrum - its use in public health

A - Papers appearing in refereed journals

Stevenson, J. H. 1963. Pyrethrum - its use in public health. Royal Society of Health Journal. 83, pp. 207-212. https://doi.org/10.1177/146642406308300431

Control of some bean and potato pests using a systemic insecticide applied to the soil and seed

A - Papers appearing in refereed journals

Way, M. J. and Needham, P. H. 1957. Control of some bean and potato pests using a systemic insecticide applied to the soil and seed. Plant Pathology. 6 (3), pp. 96-103. https://doi.org/10.1111/j.1365-3059.1957.tb00787.x

The insecticidal activity of substances related to the pyrethrins .1. The toxicities of 2 synthetic pyrethrin-like esters relative to that of the natural pyrethrins and the significance of the results in the bioassay of closely related compounds

A - Papers appearing in refereed journals

Elliott, M., Needham, P. H. and Potter, C. 1950. The insecticidal activity of substances related to the pyrethrins .1. The toxicities of 2 synthetic pyrethrin-like esters relative to that of the natural pyrethrins and the significance of the results in the bioassay of closely related compounds. Annals of Applied Biology - AAB. 37 (3), pp. 490-507. https://doi.org/10.1111/j.1744-7348.1950.tb00970.x