Nitrogen requirement of cereals .1. Response curves

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

Related outputs

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.

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

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

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

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

Response of sugar-beet to potassium and sodium fertilizers

A - Papers appearing in refereed journals

Durrant, M. J., Draycott, A. P. and Boyd, D. A. 1974. Response of sugar-beet to potassium and sodium fertilizers. The Journal of Agricultural Science. 83 (3), pp. 427-434. https://doi.org/10.1017/s0021859600026903

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

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

A - Papers appearing in refereed journals

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

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

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

The relationship between soil phosphorus and response by sugar beet to phosphate fertilizer on mineral soils

A - Papers appearing in refereed journals

Draycott, A. P., Durrant, M. J. and Boyd, D. A. 1971. The relationship between soil phosphorus and response by sugar beet to phosphate fertilizer on mineral soils. The Journal of Agricultural Science. 77 (1), pp. 117-121. https://doi.org/10.1017/S0021859600023558

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

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

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

Experiments with ley and arable farming systems

A - Papers appearing in refereed journals

Boyd, D. A. 1968. Experiments with ley and arable farming systems. Rothamsted Experimental Station Report. 1967, pp. 316-331.

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

Experiments on the P and K requirements of barley

A - Papers appearing in refereed journals

Boyd, D. A., Webber, J. and Hill, J. R. 1968. Experiments on the P and K requirements of barley . Experimental husbandry. (17), pp. 36-44.

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).

Analytical methods for potassium and their correlations with crop response - Soil potassium and magnesium

A - Papers appearing in refereed journals

Boyd, D. A. and Frater, A. 1967. Analytical methods for potassium and their correlations with crop response - Soil potassium and magnesium. MAFF Technical bulletin. 14, pp. 55-62.

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

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

The Rothamsted Ley-arable Rotation Experiment

A - Papers appearing in refereed journals

Boyd, D. A., Cooke, G. W., Dyke, G. V., Moffatt, J. R. and Warren, R. G. 1962. The Rothamsted Ley-arable Rotation Experiment. Rothamsted Experimental Station Report. 1961, pp. 173-180. https://doi.org/10.23637/ERADOC-1-94

Some results of an experiment to compare ley and arable rotations at Woburn

A - Papers appearing in refereed journals

Mann, H. H. and Boyd, D. A. 1958. Some results of an experiment to compare ley and arable rotations at Woburn. The Journal of Agricultural Science. 50 (3), pp. 287-306. https://doi.org/10.1017/S002185960003149X

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 fertilizers requirements of sugar beet

A - Papers appearing in refereed journals

Boyd, D. A., Garner, H. V. and Haines, W. B. 1957. The fertilizers requirements of sugar beet. The Journal of Agricultural Science. 48 (4), pp. 464-476. https://doi.org/10.1017/S0021859600032998

Rothamsted experiments on field beans 1. Manuring and cultivation of field beans

A - Papers appearing in refereed journals

Boyd, D. A., Cooke, G. W., Garner, H. V. and Moffatt, J. R. 1952. Rothamsted experiments on field beans 1. Manuring and cultivation of field beans. Journal of the Royal Agricultural Society of England. 113, pp. 55-69.

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

The residual manurial value of feeding stuffs consumed on grass

A - Papers appearing in refereed journals

Boyd, D. A., Crowther, E. M., Moffatt, J. R. and Yates, F. 1949. The residual manurial value of feeding stuffs consumed on grass. Journal of the Royal Agricultural Society of England. 110, pp. 104-114.