Anglade, P. (1961). Influence sur le rendement du maïs de l'infestation des tiges par la deuxième génération de la sésamie Sesamia nonagriodes Lef. (Lep. Noctuidae.) Méthodes de comparaison des hybrides par infestation artificielle.—Annls Épiphyt. 12, 357–372.
Banks, C. J. & Macauley, E. D. M. (1967). Effects of Aphis fabae Scop. and of its attendant ants and insect predators on yields of field beans. (Vicia faba L.)—Ann. appl. Biol. 60, 445–453.
Bardner, R. (1965). Losses to potatoes by aphid attack.—Rep. Rothamsted exp. Stn 1964, 179.
Bardner, R. (1966). Aphid damage to potatoes.—Rep. Rothamsted exp. Stn 1965, 178–179.
Bardner, R. (1968). Wheat bulb fly, Leptohylemyia coarctata Fall., and its effect on the growth and yield of wheat.—Ann. appl. Biol. 61, 1–11.
Bardner, R. & Fletcher, K. E. (1969). The distribution of attacked plants.—Rep. Rothamsted exp. Stn 1968, Pt. 1, 199–200.
Bardner, R. & Fletcher, K. E. (1973). A cause of variation in the distribution of infestations of wheat bulb fly (Leptohylemyia coarctata) within fields.—Entomologia exp. appl. 16, 31–38.
Bardner, R., Fletcher, K. E. & Huston, P. (1970). Recent work on wheat bulb fly. In Proceedings of the fifth British Insecticide and Fungicide Conference,17th to 20th November, 1969,Brighton.—pp. 500–504. London, British Crop Protection Council.
Bardner, R. & Huston, P. J. (1968). Effect of gaps on yield.—Rep. Rothamsted exp. Stn 1967, 207–208.
Bardner, M, & Lofty, J. R. (1971). The distribution of eggs, larvae and plants within crops attacked by wheat bulb fly Leptohylemyia coarctata (Fall.).—J. appl. Ecol. 8, 683–686.
Bardner, R., Maskell, F. E. & Ross, G. J. S. (1970). Measurements of infestations of wheat bulb fly, Leptohylemyia coarctata (Fall.), and their relationship with yield.—Pl. Path. 19, 82–87.
Bardner, R. & Taylor, W. E. (1970). Effects of flea beetles on the yield of radish.—Entomologia exp. appl. 13, 54–60.
Beck, S. D. (1965). Resistance of plants to insects.—A. Rev. Ent. 10, 207–232.
Bornemissa, G. F. & Williams, C. H. (1970). An effect of dung beetle activity on plant yield.—Pedobiologia 10, 1–7.
Boyer, W. P. (1967). The effect of type of plant growth on bollworm (Heliothis zea) infestations in soybeans in Arkansas.—Co-op, econ. Insect Rep. 17, 83–86.
Brazzel, J. R. & Gaines, J. C. (1957). Cotton yield and quality losses caused by various levels of pink bollworm infestations.—J. econ. Ent. 50, 609–613.
Buckley, B. R. & Burkhardt, C. C. (1962). Corn earworm damage and loss in grain sorghum.—J. econ. Ent. 55, 435–439.
Bullock, J. A. (1965). The assessment of the effect of insecticides on infestations of Hylemyia arambourgi Séguy (Dipt.—Anthomyidae).—Int. Congr. Ent. 1964, 611.
Bundy, J. W. (1968). The significance of pest and disease damage in the production and marketing of processed vegetables. In Proceedings of the fourth British Insecticide and Fungicide Conference,20th–23rd November, 1967,Brighton.—pp. 534–544. London, British Insecticide and Fungicide Council.
Bunting, A. H. & Drennan, D. S. H. (1966). Some aspects of the morphology and physiology of cereals in the vegetative phase. In Milthorpe, F. L. & Ivins, J. D. (Eds) The growth of cereals and grasses. Proceedings of the twelfth Easter School in Agricultural Science, University of Nottingham, 1965.—pp. 20–38. London, Butterworths.
Canerday, T. D. & Arant, F. S. (1964). The effect of late season infestations of the strawberry spider mite, Tetranychus atlanticus, on cotton production.—J. econ. Ent. 57, 931–933.
Carlson, J. W. (1940). Lygus bug damage to alfalfa in relation to seed production.—J. agric. Res. 61, 791–815.
Chiang, H. C. (1964). The effects of feeding site on the interaction of the European corn borer, Ostrinia nubilalis and its host, the field corn Zea mays.—Entomologia exp. appl. 7, 144–148.
Chiang, H. C. (1965). Relation of Ostrinia nubilalis (Hbn.) to the growth and yield of Zea mays (L.).—Int. Congr. Ent. 1964, 605–607.
Chiang, H. C. & Holdaway, F. G., Brindley, T. A. & Neiswander, C. R. (1960). European corn borer populations in relation to the estimation of crop loss.—J. econ. Ent. 53, 517–522.
Chiarappa, L. (Ed.) (1971). Crop loss assessment methods. FAO manual on the evaluation and prevention of losses by pests, diseases and weeds.—170 pp. Farnham Royal, Commonwealth Agricultural Bureaux.
Coaker, T. H. (1957). Studies of crop loss following insect attack on cotton in East Africa. II.—Further experiments in Uganda.—Bull. ent. Res. 48, 851–866.
Coaker, T. H. (1965). The effect of irrigation on the yield of cauliflowers and cabbage crops damaged by the cabbage root fly.—Pl Path. 14, 75–82.
Coaker, T. H. & Finch, S. (1971). The cabbage root fly, Erioischia brassicae (Bouché).—Rep. natn. Veg. Res. Stn 1970, 23–42.
Coghill, K. J. (1970). The effect of fruit tree red spider mite on yields of apple. In Proceedings of the fifth British Insecticide and Fungicide Conference,17th to 20th November, 1969, Brighton.—pp. 495–499. London, British Crop Protection Council.
Cramer, H. H. (1967). Plant protection and world crop production.—Pflschulz-Nachr. Bayer 20, 1–524.
Cunliffe, N. (1928). Studies on Oscinella frit Linn. Observations on infestation and yield, susceptibility to infestation, recovery power, the influence of variety on the rate of growth of the primary shoot of the oat and the reaction to manurial treatment.—Ann. appl. Biol. 15, 473–487.
Davidson, R. L. & Roberts, R. J. (1969). Scarab damage to grass and clover as influenced by depth of feeding.—Bull. ent. Res. 58, 559–565.
Deay, H. O., Patch, L. H. & Snelling, R. O. (1949). Loss in yield of dent corn infested with the August generation of the European corn borer.—J. econ. Ent. 42, 81–87.
Debach, P. (1964). Biological control of insect pests and weeds.—844 pp. London, Chapman & Hall.
Decker, G. C. (1954). A century of insect losses.—Agric. Chem. 9 (8), 40–41.
De Wit, C. T. (1960). On competition.—Versl. landb. Onderz. 66 (8), 1–82.
Dixon, A. F. G. (1971 a). The role of aphids in wood formation. I. The effect of sycamore aphid Drepanosiphum platanoides (Schr.) (Aphididae), on the growth of sycamore, Acer pseudoplatanus (L.).—J. appl. Ecol. 8, 165–179.
Dixon, A. F. G. (1971 b). The role of aphids in wood formation. II. The effect of the lime aphid Eucallipterus tiliae L. (Aphididae), on the growth of lime, Tilia × vulgaris Hayne.—J. appl. Ecol. 8, 393–399.
Doane, J. F. & Chapman, R. K. (1964). The relation of the cabbage maggot Hylemyia brassicae (Bouché) to decay in some cruciferous crops.—Entomologia exp. appl. 7, 1–8.
Dunning, R. A. (1957). Mirid damage to seedling beet.—Pl Path. 6, 19–20.
Eastin, J. D., Haskins, F. A., Sullivan, C. Y. & Bauel, C. H. M. (Eds) (1969). Physiological aspects of crop yield. Proceedings of a symposium sponsored by the University of Nebraska, the American Society of Agronomy and the Crop Science Society of America and held at the University of Nebraska, January 20–24, 1969.—396 pp. Madison, Wisconsin, American Society of Agronomy.
Empson, D. W. (1958). Frit fly and the oat panicle.—Ann. appl. Biol. 46, 479–482.
Eyles, A. C. (1965). Damage to cultivated Cruciferae by Nysius huttoni White (Heteroptera: Lygaeidae).—N.Z. Jl agric. Res. 8, 363–366.
Finney, D. J. (1941). Wireworm populations and their effect on crops.—Ann. appl. Biol. 28, 282–295.
Finney, D. J. (1971). Probit analysis.—3rd edition.—334 pp. London, Cambridge University Press.
Free, J. B. (1970). Insect pollination of crops.—544 pp. London, Academic Press.
George, K. S. (1962). Root nodule damage by larvae of Sitona lineatus, and its effect on yield of green peas.—Pl Path. 11, 172–176.
Gibson, R. W. (1974). The induction of top-roll symptoms on potato plants by the aphid Macrosiphum euphorbiae.—Ann. appl. Biol. 76, 19–26.
Gould, H. J. & Graham, C. W. (1969). The control of Aphis fabae Scop, on spring-sown field beans (Vicia faba L.).—Ann. appl. Biol. 64, 1–10.
Gruys, P. (1970). Growth in Bupalus piniarius (Lepidoptera: Geometridae) in relation to larval population density.—127 pp. Wageningen, PUDOC, Centre for Agricultural Publishing and Documentation. ().
Harries, F. H. (1966). Reproduction and mortality of the two-spotted spider mite on fruit seedlings treated with chemicals.—J. econ. Ent. 59, 501–506.
Harris, K. M. (1962). Lepidopterous stem borers of cereals in Nigeria.—Bull. ent. Res. 53, 139–171.
Harris, K. M. (1965). The effect of lepidopterous stem borers on the yields of cereals in N. Nigeria.—Int. Congr. Ent. 1964, 610.
Harvey, T. L. & Hackerott, H. L. (1970). Chemical control of a greenbug on sorghum and infestation effects on yield.—J. econ. Ent. 63, 1536–1539.
Heathcote, G. D. & Cockbain, A. J. (1966). Aphids from mangold clamps and their importance as vectors of beet viruses.—Ann. appl. Biol. 57, 321–336.
Hussey, N. W. & Parr, W. J. (1963). The effect of glasshouse red spider mite (Tetranychus urticae Koch) on the yield of cucumbers.—J. hort. Sci. 38, 255–263.
Ingram, W. R. (1969). Further studies of crop loss following insect attack on cotton in Uganda.—Bull. ent. Res. 59, 65–76.
Isaak, A., Sorenson, E. L. & Ortman, E. E. (1963). Influence of temperature and humidity on resistance in alfalfa to the spotted alfalfa aphid and pea aphid.—J. econ. Ent. 56, 53–57.
Jacobson, L. A. (1965). Damage to wheat by Say stink bug Chlorochroa sayi.—Can. J. Pl. Sci. 45, 413–417.
Jacobson, L. A. & Peterson, K. (1965). Interrelations of damage to wheat and feeding by the pale western cutworm, Agrotis orthogonia Morrison (Lepidoptera: Noctuidae).—Can. Ent. 97, 153–158.
Johnson, C. G. (1950). Infestation of a bean field by Aphis fabae Scop, in relation to wind direction.—Ann. appl. Biol. 37, 441–450.
Johnson, C. G. (1965). A focal point for insect ecology in agriculture.—Pest Artic. & News Summ. (PANS) (A) 11, 366–368.
Johnson, C. G. (1969). Migration and dispersal of insects by flight.—763 pp. London, Methuen.
Johnson, C. G., Lofty, J. R. & Cross, D. J. (1969). Insect pests on Broadbalk.—Rep. Rothamsted exp. Stn 1968, Pt. 2, 141–156.
Jones, F. G. W., Dunning, R. A. & Humphries, K. P. (1955). The effects of defoliation and loss of stand upon yield of sugar beet.—Ann. appl. Biol. 43, 63–70.
Jones, F. G. W. & Jones, M. G. (1974). Pests of field crops.—2nd edn, 488 pp. London, Edward Arnold.
Judenko, E., Johnson, C. G. & Taylor, L. R. (1952). The effect of Aphis fabae Scop. on the growth and yield of field beans in a garden plot.—Pl. Path. 1, 60–63.
Justesen, S. H. & Tammes, P. M. L. (1960). Studies of yield losses. 1. The self-limiting effect of injurious or competitive organisms on crop-yield.—Tijdschr. Plziekt. 66, 281–287.
Kennedy, J. S. (1958). Physiological condition of the host-plant and susceptibility to aphid attack.—Entomologia exp. appl. 1, 50–65.
Kinkade, R. T., Laster, M. L. & Hartwig, E. E. (1971). Simulated pod injury to soy beans.—J. econ. Ent. 64, 984–985.
Kinzer, H. G. & Henderson, C. F. (1968). Damage by larvae of the corn earworm to grain sorghum.—J. econ. Ent. 61, 263–267.
Kirby, E. J. M. (1968). Plant density and yield in cereals—N.A.A.S. q. Rev. no. 80, 139–145.
Klostermeyer, E. C. (1962). The relationship among pea aphids, lygus bugs and alfalfa seed yields.—J. econ. Ent. 55, 462–465.
Kulman, H. M. (1971). Effects of insect defoliation on growth and mortality of trees.—A. Rev. Ent. 16, 289–324.
Kuznetsov, V. S. & Bebin, S. I. (1965). Agrobiological basis of topping in fodder beans.—Izv. timiryazev. sel'.-khoz. A kad. no. 1, 100–109.
Leach, J. G. (1940). Insect transmission of plant diseases.—615 pp. New York, McGraw-Hill.
Leakey, C. L. A. & Perry, D. A. (1966). The relation between damage caused by insect pests and boll rot associated with Glomerella cingulata (Stonem.) Spauld von Schrenk and Colletotrichum gossypii Southw. on upland cotton in Uganda.—Ann. appl. Biol. 57, 337–344.
Lewis, T. (1966). An analysis of components of wind affecting the accumulation of flying insects near artificial windbreaks.—Ann. appl. Biol. 58, 365–370.
Lewis, T. (1967). The horizontal and vertical distribution of flying insects near artificial windbreaks.—Ann. app. Biol. 60, 23–31.
Lewis, T. & Stephenson, J. W. (1966). The permeability of artificial windbreaks and the distribution of flying insects in the leeward sheltered zone.—Ann. appl. Biol. 58, 355–363.
Macfadyen, A. (1963). Animal ecology: aims and methods.—2nd edn, 344 pp. London, Pitman.
Macfadyen, A. (1967). Methods of investigation of productivity of invertebrates in terrestrial ecosystems. In Petrusewicz, K. (Ed.). Secondary productivity of terrestrial ecosystems. (Principles & methods.) Proceedings of working meeting held in Jabonna 31.8–6.9. 1966. Vol. 2. pp. 383–412. Warsaw, Institute of Ecology, Polish Academy of Sciences/Polish International Biological Programme.
Maramorosch, K. (1963). Arthropod transmission of plant viruses.—A. Rev. Ent. 8, 369–414.
Maramorosch, K. (Ed.) (1969). Viruses, vectors and vegetation.—666 pp. New York, Interscience.
Mazanec, Z. (1968). Influence of defoliation by the phasmatid Didymuria violescens on seasonal diameter growth and the pattern of growth rings in alpine ash.—Aust. For. 32, 3–14.
McEwen, J. (1972). Effects of defoliating different zones on the plant in field beans (Vicia faba L.).—J. agric. Sci. Camb. 78, 487–490.
Mckinlay, K. S. (1965). Insect damage, crop formation and the yield of coconuts.—Bull. ent. Res. 56, 67–78.
Mckinlay, K. S. & Geering, Q. A. (1957). Studies of crop loss following insect attack on cotton in East Africa. I. Experiments in Uganda and Tanganyika.—Bull. ent. Res. 48, 833–849.
Metcalf, C. L. & Flint, W. P. (1962). Destructive and useful insects. 4th edn revised by R. L. Metcalf.—1087 pp. New York, McGraw-Hill.
Miles, P. W. (1968). Insect secretions in plants.—A. Rev. Phytopathol. 6, 137–164.
Mittler, T. E. & Sylvester, E. S. (1961). A comparison of the injury to alfalfa by the aphids Therioaphis maculata and Macrosiphum pisi.—J. econ. Ent. 54, 615–622.
Nixon, G. E. J. (1951). The association of ants with aphids and coccids.—36 pp. London, Commonwealth Institute of Entomology.
Nuorteva, P. (1962). Studies on the causes of the phytopathogenicity of Calligypona pellucida (F.) (Hom., Araeopidae).—Suomal. eläin-ja kasvit. Seur. van. Julk. 23 (4), 1–58.
Ogborn, J. E. A. & Proctor, J. H. (1962). Bollworm attack and the water status of the cotton crop.—Emp. Cott. Grow. Rev. 39, 131–135.
Ordish, G. (1960). Agricultural pests in history.—Span 3, 22–26.
Ordish, G. & Toft, H. (1965). Loss of economic yield in crops.—Int. Congr. Ent. 1964, 603–605.
Painter, R. H. (1951). Insect resistance in crop plants.—520 pp. New York, Macmillan.
Painter, R. H. (1958). Resistance of plants to insects.—A. Rev. Ent. 3, 267–290.
Phillipson, J. (1966). Ecological energetics.—57 pp. London, Edward Arnold.
Pimentel, D. (1971). Population control in crop systems: monocultures and plant spatial patterns. In Proceedings of the second Tall Timbers conference on ecological animal control by habitat management, 1970.—pp. 209–221. Tallahassee, Florida, Tall Timbers Research Station.
Pritam, Singh (1970). Host-plant nutrition and composition: effects on agricultural pests.—Inf. Bull. Belleville Res. Inst., Can. Dep. Agric., 102 pp.
Radcliffe, E. B. & Chapman, R. K. (1965). Seasonal shifts in the relative resistance to insect attack of eight commercial cabbage varieties.—Ann. ent. Soc. Am. 58, 892–897.
Rautappää, J. (1966). The effect of the English gram aphid, Macrosiphum avenae (F.) (Horn., Aphididae), on the yield and quality of wheat.—Ann. Agric. fenn. 5, 334–341.
Rautappää, J. (1968 a). Changes in the yield and protein quantity of oat caused by Rhopalosiphum padi (L.) (Horn., Aphididae).—Ann. Agric. fenn. 7, 95–104.
Rautappää, J. (1968 b). Reduction in yield and changes in brewing quality of barley caused by Macrosiphum avenae (F.) (Horn., Aphididae).—Acta Agric. scand. 18, 233–241.
Rautappää, J. (1969). Effect of Lygus rugulipennis Popp. (Hem., Capsidae) on the yield and quality of wheat.—Suom. hyönt. Aikak. 35, 168–175.
Rautappää, J. (1970). Effect of the meadow capsid bug, Leptoterna dolabrata (L.) (Het., Capsidae) on the yield and quality of wheat.—Suom. hyönt. Aikak. 36, 145–152.
Riepma, W. P. (1954). Standruimte-onderzoek aan lupinen.—Versl. cent, landbouwk. Onderz., 105–110.
Rodriguez, J. G. (1960). Nutrition of the host and reaction to pests. Biological and chemical control of plant and animal pests.—Publs Am. Ass. Advmt. Sci. 61, 149–167.
Roebuck, A. (1933). Measurements in nature: or the toll of insect and other animal pests on the farms of Lindsey during 1932.—Trans. Lincs. Nat. Un., 71–81.
Scales, A. L. & Furr, R. E. (1968). Relationship between the tarnished plant bug and deformed cotton plants.—J. econ. Ent. 61, 114–118.
Schurr, K. M. & Holdaway, F. G. (1965). The relationship between plant injury in maize and ovipositional preference of Ostrinia nubilalis (Hbn.) (European corn borer).—Int. Congr. Ent. 1964, 607–608.
Scott, D. R. (1970). Feeding of lygus bugs (Hemiptera: Miridae) on developing carrot and bean seed: increased growth and yields of plants grown from that seed.—Ann. ent. Soc. Am. 63, 1604–1608.
Seinhorst, J. W. (1965). The relation between nematode density and damage to plants.—Nematologica 11, 137–154.
Sinha, R. C. (1968). Recent work on leaf-hopper-transmitted viruses.—Adv. Virus Res. 13, 181–223.
Skuhravý, V. (1968). Einfluss der Entblätterung und des Kartoffelkäferfrasses auf die Kartoffelernte.—Anz. Schädlingsk. 41, 180–188.
Smith, R. F. (1967). Principles of measurement of crop losses caused by insects. In United Nations, Food and Agriculture Organization. Papers presented at the FAO symposium on crop losses, Rome, 2–6 October, 1967.—pp. 205–224. Rome, FAO.
Southwood, T. R. E. & Jepson, W. F. (1961). The frit fly—a denizen of grassland and a pest of oats.—Ann. appl. Biol. 49, 556–557.
Stadelbacher, E. A. (1964). Evaluation of the growth and yield of cucumber plants as affected by the feeding of known populations of the striped cucumber beetle, Acalymma vittata (Fab.).—149 pp. Thesis, University of Illinois.
Stern, V. M. (1973). Economic thresholds.—A. Rev. Ent. 18, 259–280.
Stern, V. M., Smith, R. F., Van Den Bosch, R. & Hagen, K. S. (1959). The integrated control concept.—Hilgardia 29 (2), 81–101.
Strickland, A. H. (1954). Assessment of cabbage aphid damage in commercial brussels sprout crops.—Pl. Path. 3, 107–117.
Strickland, A. H. (1956). Agricultural pest assessment. I.—The problem.—N.A.A.S. q. Rev. no. 33, 112–118.
Strickland, A. H. (1957). Cabbage aphid assessment and damage in England and Wales, 1946–55.—Pl. Path. 6, 1–9.
Strickland, A. H. & Bardner, R. (1967). A review of current methods applicable to measuring crop losses due to insects. In United Nations, Food and Agriculture Organization. Papers presented at the FAO symposium on crop losses, Rome, 2–6 October, 1967, pp. 289–309. Rome, FAO.
Tammes, P. M. L. (1961). Studies of yield losses. II. Injury as a limiting factor of yield.—Tüdschr. PlZiekt 67, 257–263.
Taylor, C. E. (1962 a). Factors influencing the infestation of a bean field by Aphis fabae Scop.—Entomologia exp. appl. 5, 105–113.
Taylor, C. E. (1962 b). The population dynamics of aphids infesting the potato plant with particular reference to the susceptibility of certain varieties to infestation.—Eur. Potato J. 5, 204–219.
Taylor, C. E. & Johnson, C. G. (1954). Wind direction and the infestation of bean fields by Aphis fabae Scop.—Ann. appl. Biol. 41, 107–116.
Taylor, L. R. (1961). Aggregation, variance and the mean.—Nature, Lond. 189, 732–735.
Taylor, L. R. (1965). A natural law for the spatial disposition of insects.—Int. Congr. Ent. 1964, 396–397.
Taylor, L. R. (1970). Aggregation and the transformation of counts of Aphis fabae Scop, on beans.—Ann. appl. Biol. 65, 181–189.
Taylor, W. E. & Bardner, R. (1968 a). Leaf injury and food consumption by larvae of Phaedon cochleariae (Coleoptera: Chrysomelidae) and Plutella maculipennis (Lepidoptera: Plutellidae) feeding on turnip and radish.—Entomologia exp. appl. 11, 177–184.
Taylor, W. E. & Bardner, R. (1968 b). Effects of feeding by larvae of Phaedon cochleariae (F.) and Plutella maculipennis (Curt.) on the yield of radish and turnip plants.—Ann. appl. Biol. 62, 249–254.
Taylor, W. E. & Bardner, R. (1970). Energy relationships between larvae of Phaedon cochleariae (Coleoptera: Chrysomelidae) or Plutella maculipennis (Lepidoptera: Plutellidae) and radish or turnip plants.—Entomologia exp. appl. 13, 403–406.
Thorne, G. N. (1966). Physiological aspects of grain yield in cereals. In Milthorpe, F. L. & Ivins, J. D. (Eds). The growth of cereals and grasses. Proceedings of the twelfth Easter School in Agricultural Science, University of Nottingham, 1965.—pp. 88–105. London, Butterworths.
Thorne, G. N. (1969). Physiology of grain yield.—N.A.A.S. q. Rev. no. 85, 42–46.
Van Emden, H. F. (1965). The effect of uncultivated land on the distribution of cabbage aphid (Brevicoryne brassicae) on an adjacent crop.—J. appl. Ecol. 2, 171–196.
Van Emden, H. F. (1966). Plant insect relationships and pest control.—World Rev. Pest Contr. 5, 115–123.
Van Emden, H. F. (1969). Plant resistance to aphids induced by chemicals.—J. Sci. Fd Agric. 20, 385–387.
Van Emden, H. F., Eastop, V. F., Hughes, R. D. & Way, M. J. (1969). The ecology of Myzus persicae.—A. Rev. Ent. 14, 197–270.
Walker, P. T. (1960). The relation between infestation by the stalk borer, Busseola fusca and yield of maize in East Africa.—Ann. appl. Biol. 48, 780–786.
Walters, H. J. (1969). Beetle transmission of plant viruses.—Adv. Virus Res. 15, 339–363.
Wareing, P. F. & Cooper, J. P. (1971). Potential crop production: a case study—416 pp. London. Heinemann.
Watson, D. J. (1952). The physiological basis of variation in yield.—Adv. Agron. 4, 101–145.
Watson, D. J. (1956 a). Measurement of photosynthesis in field conditions.—Landbouwk. Tijdschr., 's-Grav. 68, 581–589.
Watson, D. J. (1956 b). The physiological limitations of crop yield and the possibilities of increasing it.—Landbouwk. Tijdschr., 's-Grav. 68, 590–594.
Watson, D. J. (1968). A prospect of crop physiology.—Ann. appl. Biol. 62, 1–9.
Watson, M. A. & Plumb, R. T. (1972). Transmission of plant-pathogenic viruses by aphids.—A. Rev. Ent. 17, 425–452.
Way, M. J. (1961). Crop losses by insects and the problem of control.—Proc. Nutr. Soc. 20, 5–11.
Way, M. J. & Heathcote, G. D. (1966). Interactions of crop density of field beans, abundance of Aphis fabae Scop., virus incidence and aphid control by chemicals.—Ann. appl. Biol. 57, 409–423.
Way, M. J., Bardner, R., Van Baer, R. & Aitkenhead, P. (1958). A comparison of high and low volume sprays for control of the bean aphid, Aphis fabae Scop, on field beans.—Ann. appl. Biol. 46, 399–410.
Westlake, D. F. (1963). Comparisons of plant productivity.—Biol. Rev. 38, 385–425.
White, R. M. (1946). Preliminary observations on some effects of artificial defoliation of wheat plants.—Scient. Agric. 26, 225–229.
Wilson, M. C., Treece, R. E., Shade, R. E., Day, K. M. & Stivers, R. K. (1969). Impact of cereal leaf beetle larvae on yields of oats.—J. econ. Ent. 62, 699–702.