Augmentation of Natural Enemies for Control of Plant Pests in the Western Hemisphere

  • R. L. Ridgway
  • E. G. King
  • J. L. Carrillo
Part of the Environmental Science Research book series (ESRH, volume 11)


Augmentation is defined as periodically increasing either the number of parasites or predators or the supply of their food resources to assure that adequate numbers of parasites and predators are present to provide the desired level of pest control. Similar definitions have been used previously (Ridgway 1972, Rabb et al. 1976). The release of natural enemies has also been classified as being either inoculative or inundative (DeBach and Hagen 1964). Inoculative releases appropriately describe releases of natural enemies for the purpose of colonizing populations to regulate pest populations through in-field reproduction of the released species. However, the use of inundative releases to describe all other augmentative releases may be misleading since by definition inundative means “to flood or to overwhelm by great numbers.”


Biological Control Natural Enemy Western Hemisphere Boll Weevil Field Cage 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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References Cited

  1. Abies, J. R., S. L. Jones, and D. L. Bull. 1977. Effect of diflubenzuron on beneficial arthropods associated with cotton. Southwest Entomol. In press.Google Scholar
  2. Anderson, J. M., R. R. Bridge, A. M. Heagler, and G. R. Tupper. 1976. The economic impact of recently developed early- season cotton strains on firm and regional cropping systems and income, p. 90–100 In Proc. Beltwide Cotton Prod. Res. Conf.Google Scholar
  3. Andrilenas, P. A. 1974. Farmers Use of Pesticides in 1971— Quantities. U.S. Dept. of Agr. Agr. Econ. Rep. No. 252.Google Scholar
  4. Armitage, H. 1919. Controlling mealybugs by the use of their natural enemies. Calif. Stat. Hort. Comm. Monthly Bulls. 8: 257–60.Google Scholar
  5. Armitage, H. M. 1929. Timing field liberations of Cryptolaemus in the control of the citrophilus mealybug in the infested citrus orchards of southern California. J. Econ. Entomol. 22: 910–5.Google Scholar
  6. Ashley, T. R., J. C. Allen, and D. Gonzalez. 1974. Successful parasitization of Heliothis zea and Trichoplusia ni eggs by Trichogramma. Environ. Entomol. 3: 319–322.Google Scholar
  7. Bennett, F. D. 1969. Tachinid flies as biological control agents for sugarcane moth borers, pp. 117–18. In Pests of Sugar Cane, J. R. Williams, J. R. Metcalfe, R. W. Mungomery, and R. Mathes (eds.). New York: Elsevier Publ. Co. 568 pp.Google Scholar
  8. Boedijono, W. A. 1974. An attempt to control sugarcane stemborers with the dipterous parasite Diatraeophaga striatalis (Towns.). Int. Soc. Sug. Technol.Google Scholar
  9. Bonfils, J. and P. F. Galichet. 1974. Effects d’introductions renouvelles de Lixophaga diatraeae [Diptera, Tachinidae] sur des populations naturelles du parasite et de son hate, Diatraeae saccharalis. Entomophaga 19 (1): 67–73.Google Scholar
  10. Boyd, J. P. 1970. Feeding and searching behavior of Chrysopa carnea Stephens. Ph.D. Dissertation. Texas A and M University. 108 pp.Google Scholar
  11. Bryan, D. E., C. G. Jackson, R. Patana, and E. G. Neeman. 1971. Field cage on laboratory studies with Bracon kirkpatricki, a parasite of the pink bollworm. J. Econ. Entomol. 64 (5): 1236–41.Google Scholar
  12. Bryan, D. E., R. E. Fye, C. G. Jackson, and R. Patana. 1973a. Releases of parasites for suppression of pink bollworms in Arizona. U.S. Dept. Prod. Agr. Res. Rpt. 8 pp.Google Scholar
  13. Bryan, D. E., R. E. Fye, C. G. Jackson, and R. Patana. 1973b. Releases of Bracon kirkpatricki (Wilkinson) and Chelonus blackburni Cameron for pink bollworm control in Arizona. U.S. Dept. Agr. Prod. Res. Rpt. 24 pp.Google Scholar
  14. Cooke, W. C. 1963. Ecology of the pea aphid in the Blue Mountain area of eastern Washington and Oregon. Tech. Bull. U.S. Dept. Agric. 1287, 48.Google Scholar
  15. Croft, B. A. 1976. Establishing insecticide-resistant phytoseid mite predators in deciduous tree fruit orchards. Entomophaga 21: 383–399.Google Scholar
  16. Croft, B. A. and S. A. Hoying. 1975. Carbaryl resistance in native and released populations of Ambtyseius faltacis. Environ. Entomol. 4: 895–8.Google Scholar
  17. Croft, B. A. and J. A. McMurtry. 1972. Minimum releases of Typhlodromus oacidentalis to control Tetranychus medanieli on apple. J. Econ. Entomol. 65: 188–91.Google Scholar
  18. DeBach, P. 1974. Biological control by natural enemies. Cambridge Univ. Press. 323 pp.Google Scholar
  19. DeBach, P., and K. S. Hagen. 1964. Manipulation of entomophagous species, In: P. DeBach, (ed.) Biological Control of Insect Pests and Weeds, pp. 429–58. London: Chapman and Hall Ltd. 844 p.Google Scholar
  20. DeBach, P., E. J. Dietrick, C. A. Fleschner, and T. W. Fisher. 1950. Periodic colonization of Aphytis for control of the California red scale. Preliminary tests, 1949. J. Econ. Entomol. 43: 783–802.Google Scholar
  21. Detwiler, D., T. Thompson, and J. Loomis. 1976. News about community gardens. Gardens for All, Inc., Shelburne, VT. 7 pp.Google Scholar
  22. Doutt, R. L. 1951. Biological control of mealybugs infesting commercial greenhouse gardenias. J. Econ. Entomol. 44: 37–40.Google Scholar
  23. Doutt, R. L., and K. S. Hagen. 1949. Periodic colonizations of Chrysopa California as possible control of mealybugs. J. Econ. Entomol. 42: 560.Google Scholar
  24. Doutt, R. L., and K. S. Hagen. 1950. Biological control measures applied against Pseudococcus maritimus on pears. J. Econ. Entomol. 43: 94–6.Google Scholar
  25. Dutky, S. R. 1974. Nematode parasites, pp. 576–90. In Proceedings of the Summer Institute on Biological Control of Plant Insects and Diseases, Ed. F. G. Maxwell and F. A. Harris. Univ. Press, Jackson, MS. 647 p.Google Scholar
  26. Elsey, K. D. 1971. Stilt bugs prédation on artificial infestation of tobacco hornworm eggs. J. Econ. Entomol. 64 (3): 772–773.Google Scholar
  27. Elsey, K. D. 1975. Jalysus spinosus: Increased numbers produced on tobacco by early-season releases. Tobacco Sci. 19: 13–15.Google Scholar
  28. Falcon, L. A. 1971. Use of bacteria for control of insects, p. 67–95. In H. D. Burges and N. W. Hussey, eds. Microbial Control of Insects. Academic Press, N.Y. Fye, R. E. 1972. Manipulation of Polistes exclamans arizonensis. Environ. Entomol. 1(1): 55–7.Google Scholar
  29. Goldstein, J. 1977. Up the organic ladder with a spade and hoe. Organic Gardening and Farming. July. pp. 30–6.Google Scholar
  30. Gonzalez, R. H. 1976. Crop protection in Latin America, with special reference to integrated pest control. FAO Plant Protection Bull. 24 (3): 65–75.Google Scholar
  31. Grimble, D. 1975. Releases of Apanteles melanoscelus for gypsy moth suppression. Appl. For. Res. Note 15: 1–6.Google Scholar
  32. Halfhill, J. E. and P. E. Featherston. 1973. Inundative releases of Aphidius smithi against Асуrthosiphon pisum. Environ. Entomol. 2: 469–72.Google Scholar
  33. Harbaugh, C. K. and R. H. Mattson. 1973. Lacewing larvae control aphids on greenhouse snapdragons. J. Amer. Soc. Ногt. Sc. 98: 306–9.Google Scholar
  34. Hart, W. G. 1972. Compensatory releases of Microterys flavus as a biological control agent against brown soft scale. Environ. Entomol. 1: 414–419.Google Scholar
  35. Hartstack, A. W., J. A. Witz, and R. L. Ridgway. 1975. Suggested applications of a dynamic Heliothis model (MOTHZV-1) in pest management decision making. Proc. of Beltwide Cotton Prod. Res. Conf. 118–22 pp.Google Scholar
  36. Hartstack, A. W., J. L. Jenson, I. A. Witz, J. A. Jackman, J. P. Hollingsworth, and R. E. Frisbie. 1977. The Texas program for forecasting Heliothis spp. infestations on cotton. In Proc. Beltwide Cotton Prod. Res. Conf. In press.Google Scholar
  37. Helgesen, R. G., and M. J. Tauber. 1974. Biological control of greenhouse whitefly, Trialeurodes vaporariorum (Aleyrodidae: Homoptera), on short-term crops by manipulating biotic and abiotic factors. Can. Ent. 106: 1175–1188.Google Scholar
  38. Hensley, S. D. 1971. Management of sugarcane borer populations in Louisiana, a decade of change. Entomophaga 16: 133–46.Google Scholar
  39. Higgins, A. H. 1970. A machine for free aerial release of sterile pink bollworm moths. USDA. ARS 81–40.Google Scholar
  40. Hoy, M. A. 1975. Forest and laboratory equations of hybridized Apanteles melanoscelus (Hym.: Braconidae), a parasitoid of Porthetria dispar (Lep.: Lymantriidae ). Entomophaga 20: 261–8.Google Scholar
  41. Huffaker, C. B. 1971. Biological Control. Plenum Press, N.Y. and London. 511 pp.Google Scholar
  42. Huffaker, C. B. and C. E. Kennett. 1956. Experimental studies on prédation: Prédation and cyclamen-mite populations on strawberries in California. Hilgardia 26: 191–222.Google Scholar
  43. Huffaker, C. B. and P. S. Messenger, Eds. 1976. Theory and Practice of Biological Control. Academic Press. N.Y. 788 pp.Google Scholar
  44. Jackson, C. G., D. E. Bryan, E. G. Neeman, and A. L. Wardecker. 1970. Biological control: Results of field cage tests with parasites of Heliothis spp. Third Quarterly Report. Cotton Insects Biological Control Investigations. Tucson, Arizona.Google Scholar
  45. Jimenez, J., Eleazar. 1975. The action program for biological control in Mexico. Presented at the Work Conf. of the U.S. and Mexico on “Biological control of pests and weeds,” Brownsville, TX. February 20–21. 3 pp.Google Scholar
  46. Jones, J. W., J. D. Hesketh, R. F. Colwick, H. C. Lane, J. M. McKinion, and A. C. Thompson. 1975. Predicting square, flower, and boll production of cotton at different stages of organogenesis. In Proc. Beltwide Cotton Prod. Conf.Google Scholar
  47. Jones, S. L. and R. L. Ridgway. 1976. Development of methods for field distribution of eggs of the insect predator Chrysopa carnea Stephens. USDA, ARS–S–124. 5 pp.Google Scholar
  48. Jones, S. L., R. K. Morrison, and J. R. Abies. A new and improved technique for the field release of Trichogramma pretiosum. Southwestern Entomol. In press.Google Scholar
  49. Kinzer, R. E. 1976. Development and evaluation of techniques for using Chrysopa carnea Stephens to control Heliothis spp. in cotton. Ph.D. Dissertation. Texas Aand M University. 60 pp.Google Scholar
  50. Knipling, E. F. 1972. Simulated population models to appraise the potential for suppressing sugarcane borer populations by strategic releases of the parasite Lixophaga diatraeae. Environ. Entomol. 1: 1–6.Google Scholar
  51. Lacewell, R. D., J. M. Sprott, G. A. Niles, J. K. Walker, and J. R. Gannaway. 1976. Cotton growing in an integrated production system. Trans. Am. Soc. Agric. Engr. 19: 815–18.Google Scholar
  52. Lawson, F. R., R. L. Rabb, F. E. Guthrie, and L. G. Bowery. 1961. Studies of an integrated control system for hornworms on tobacco. J. Econ. Entomol. 540: 93–7.Google Scholar
  53. Lewis, K. R., and H. A. Turney. 1977. Insect controls for organic gardeners. Texas Agric. Ext. Sta. MP–I284. 10 pp.Google Scholar
  54. Lewis, W. J., A. N. Sparks, R. L. Jones, and D. J. Barras. 1972. Efficiency of Cardiochiles nigriceps as a parasite of Heliothis virescens on cotton. Environ. Entomol. 1: 468–71.Google Scholar
  55. Lingren, P. D. 1969. Apanteles marginiventris as a parasite of the cabbage looper and Heliothis spp. attacking cotton. Meeting Entomol. Soc. Amer., Chicago, IL.Google Scholar
  56. Lingren, P. D. 1977. Campoletis sonorensis: Maintenance of a population on tobacco budworms in a field cage. Environ. Entomol. 6: 72–76.Google Scholar
  57. Lingren, P. D. and J. G. Kim. 1970. Inundative releases of Trichogramma sp. for control of bollworm and tobacco budworm attacking cotton. Presented at ESA mtg., Miami, Florida. November 30-December 3.Google Scholar
  58. Lingren, P. D. and L. W. Noble. 1972. Preference of Campoletis perdistinctus for certain noctuid larvae. J. Econ. Entomol. 65: 104–7.Google Scholar
  59. Lingren, P. D., R. L. Ridgway, and S. L. Jones. 1968a. Consumption by several common arthropod predators of eggs and larvae of two Heliothis species that attack cotton. Ann. Entomol. Soc. Amer. 61: 613–8.Google Scholar
  60. Lingren, P. D., R. L. Ridgway, C. B. Cowan, J. W. Davis, and W. C. Watkins. 1968b. Biological control of the bollworm and tobacco budworm by arthropod predators affected by insecticides. J. Econ. Entomol. 61: 1521–25.Google Scholar
  61. Lloyd, E. P., R. H. Wood, and E. B. Mitchell. 1977. Boll weevil suppression with TH-6040 applied in cottonseed oil as a foliar spray. J. Econ. Entomol. In Press.Google Scholar
  62. Lopez, J. D., R. L. Ridgway, and R. E. Pinnell. 1976. Comparative efficacy of four insect predators of the bollworm and tobacco budworm. Environ. Entomol. 5: 1160–1164.Google Scholar
  63. Lorbeer, H. 1971. Integrated biological control in Fillmore citrus groves. Calif. Citrograph. April.Google Scholar
  64. McClanahan, R. J. 1970. Integrated control of the greenhouse whitefly on cucumbers. J. Econ. Entomol. 63: 599–601.Google Scholar
  65. McClanahan, R. J. 1972. Integrated control of the greenhouse whitefly. Can. Dep. Agric. Publ. 1469. 7 pp.Google Scholar
  66. McLeod, J. H. 1938. The control of the greenhouse whitefly in Canada by the parasite Encarsia formosa Gahan. Scient. Agric. 18: 529–35.Google Scholar
  67. McLeod, J. H. 1939. Biological control of greenhouse pests. Rept. Entomol. Soc. Ont. 70: 62–68.Google Scholar
  68. McMurtry, J. A., H. G. Johnson and G. T. Scriven. 1969. Experiments to determine effects of mass release of Stethorus picipes on the level of infestation of the avocado brown mite. J. Econ. Entomol. 6: 1216–1221.Google Scholar
  69. McPherson, R. M., and S. D. Hensley. 1976. Potential of Lixophaga diatraeae for control of Diatraea saccharalis in Louisianna. J. Econ. Entomol. 69: 215–8.Google Scholar
  70. Martin, P. C., P. D. Lingren, G. L. Greene, and R. L. Ridgway. 1976. Parasitization of two species of Plusiinae and Heliothis spp. after releases of Trichogramma pretiosum in seven crops. Environ. Entomol. 5: 991–5.Google Scholar
  71. Meredith, W. R. 1976. Nectariless cottons, p. 34–37 In Proc. Beltwide Cotton Prod.-Mech. Conf.Google Scholar
  72. Meyer, R. H. 1975. Release of carbaryl resistant predatory mites in apple orchards. Environ. Entomol. 4: 49–51.Google Scholar
  73. Montes, M. 1970. Estudios sobre bionomia V la biometria de Lixophaga diatraeae (Towns.). (Diptera, Tachinidae). Ciencias Biologicas 4 (7), 60 pp.Google Scholar
  74. Nickle, W. R. 1974. Nematode infections. In: Insect Diseases, Vol. II, pp. 327–376, ed. G. E. Cantwell. Marcel Delker, Inc., New York.Google Scholar
  75. Noble, L. W., and H. M. Graham. 1966. Behavior of Campoletis perdistinctus (Vierek) as a parasite of the tobacco budworm. J. Econ. Entomol. 59: 1118–20.Google Scholar
  76. Oatman, E. R., and G. R. Platner. 1971. Biological control of the tomato fruitworm, cabbage looper, and hornworms on processing tomatoes in southern California, using mass releases of Trichogramma pretiosum. J. Econ. Entomol. 64: 501–6.Google Scholar
  77. Oatman, E. R., J. A. McMurtry, and V. Voth. 1968. Suppression of the two-spotted spider mite on strawberry with mass releases of Phytoseiules persimilis. J. Econ. Entomol. 61: 1517–1521.Google Scholar
  78. Olkowski, H. and W. Olkowski. 1976. How to control garden pests without killing almost everything else. Horticulture Magazine. June. 5 pp.Google Scholar
  79. Pacheco, M., Francisco. 1971. Evaluation of the parasitism of the wasp Trichogramma spp. on eggs of the bollworm in Sonora–1971. Prog. Rpt. No. 3. 14 pp.Google Scholar
  80. Pacheco M., Francisco, J. L. Carrillo S., J. Monge C., and R. Covarrubias G. 1971. Adelantos sobre la evaluaction del parasitismo de la avispita Trichogramma spp. sobre huevecillos de gusano bellotero en sonora durante 1969. Agricultura Technia en Mexico, Organo del INIA, SAG, Vol. Ill, No. 2. pp. 53–57.Google Scholar
  81. Parker, F. D. 1971. Manipulation of pest populations by manipula- ting densities of both hosts and parasites through periodic releases, pp. 365-76. In Biological Control. C. B. Huffaker, ed. Plenum Press. New York. 511 p.Google Scholar
  82. Parker, F. D., and R. E. Pinnell. 1972a. Effectiveness of Trichogramma spp. in parasitizing eggs of Pieris rapae and Trichoplusia ni. 1. Field studies. Environ. Entomol. 1: 785–789.Google Scholar
  83. Parker, F. D., and R. E. Pinnell. 1972b. Further studies of the biological control of Pieris rapae using supplemental host and parasite releases. Environ. Entomol. 1: 150–157.Google Scholar
  84. Parker, F. D., F. R. Lawson, and R. E. Pinnell. 1971. Suppression of Pieris rapae using a new control system: mass releases of both the pest and its parasite. J. Econ. Entomol. 64: 721– 735.Google Scholar
  85. Pennington, N. 1975. Managers report, Fillmore Citrus Protective District. Jan. 1 to Dec. 31. 3 pp.Google Scholar
  86. Rabb, R. L., R. E. Stinner, and R. van den Bosch. 1976. Conservation and augmentation of natural enemies, p. 233–254. In C. B. Huffaker and P. S. Messenger, eds. Theory and Practice of Biological Control. Academic Press, N.Y.Google Scholar
  87. Reeves, B. G. 1975. Design and evaluation of facilities and equipment for mass production of facilities and equipment for mass production and field release of an insect parasite and an insect predator. Ph.D. Dissertation. Texas A and M University. 180 pp.Google Scholar
  88. Ridgway, R. L. 1969. Control of the bollworm and tobacco budworm through conservation and augmentation of predaeeous insects. Proc. Tall Timbers Conf. on ecol. animal control by habitat mgmt. 1: 127–144.Google Scholar
  89. Ridgway, R. L. 1972. Use of parasites, predators, and microbial agents in management of insect pests of crops. Proc. National Extension Insect-Pest Management Workshop, Purdue U. pp. 51–62.Google Scholar
  90. Ridgway, R. L. and S. L. Jones. 1968. Field-cage releases of Chrysopa oarnea for suppression of populations of the bollworm and the tobacco budworm on cotton. J. Econ. Entomol. 61; 892–898.Google Scholar
  91. Ridgway, R. L. and S. L. Jones. 1969. Inundative releases of Chrysopa cornea for control of Heliothis on cotton. J. Econ. Entomol. 62: 177–180.Google Scholar
  92. Ridgway, R. L. and R. E. Kinzer. 1974. Chrysopids as predators of crop pests. Entomophaga, Mem. H. S., 7. pp. 45–51.Google Scholar
  93. Ridgway, R. L. and P. D. Lingren. 1972. Predaceous and parasitic arthropods as regulators of Heliothis populations. Southern Coop. Series Bull. No. 169. pp. 48–56.Google Scholar
  94. Ridgway, R. L., R. K. Morrison, R. E. Kinzer, R. E. Stinner, and B. G. Reeves. 1973. Programmed releases of parasites and predators for control of Heliothis spp. on cotton. Proc. 1973 Beltwide Cotton Prod. Res. Conf. pp. 92–94.Google Scholar
  95. Ridgway, R. L., R. E. Kinzer, and R. K. Morrison. 1974. Production and supplemental releases of parasites and predators for control of insect and spider mite pests of crops, pp. 110–6. In F. G. Maxwell and F. A. Harris (eds.). Proceedings of the Summer Institute on Biological Control of Plant Insects and Diseases. Univ. Press. Mississippi, Jackson. 647 pp.Google Scholar
  96. Rincon-Vitova Insectaries, Inc. Undated. Rincon-Vitova Insectaries offers integrated pest management programming. Oakview, CA., USA. 8 pp.Google Scholar
  97. Scaramuzza, L. C. 1951. El control biologico y sus resultados en el lucha contra el barrenador a perforador de la cana Diatraea saccharalis (Fabr.) en Cuba por medio de la mosca, Lixophaga diatraeae (Towns.) Asambl. latino amer. Fitoparasitologia, 1: 282–92.Google Scholar
  98. Shands, W. A., G. W. Simpson, and C. C. Gordon. 1972. Insect predators for controlling aphids on potatoes. 5. Numbers of eggs and schedules for introducing them in large field cages. J. Econ. Entomol. 65: 810–17.Google Scholar
  99. SooHoo, C. F., R. S. Seay, and P. V. Vail. 1974. Voria ruralis: Field cage evaluation of four densities of the larval parasite against Trichoplusia ni. Environ. Entomol. 3: 439–40.Google Scholar
  100. Smith, H. S. and H. M. Armitage. 1931. The biological control of mealybugs attacking citrus. Univ. Calif. Bull. 509, 74 pp.Google Scholar
  101. SooHoo, C. F., R. S. Seay, and P. V. Vail. 1974. Voria ruralis: Field cage evaluation of four densities of the larval parasite against Trichoplusia ni. Environ. Entomol. 3: 439–40.Google Scholar
  102. Starks, K. J., E. A. Wood, Jr., R. L. Burton, and H. W. Somsen. Release of parasitoids to control greenbugs on sorghum. USDA-ARS-S-91.Google Scholar
  103. Stevens, L. M., A. L. Steinhauer, and J. R. Coulson. 1975. Suppression of Mexican bean beetle on soybeans with annual inoculative releases of Pediobius foveolatus. Environ. Entomol. 4: 947–52.Google Scholar
  104. Stinner, R. E. 1977. Efficacy of inundative releases. Ann. Rev. Entomol. 22: 515–31.Google Scholar
  105. Stinner, R. E., R. L. Ridgway, J. R. Coppedge, R. K. Morrison, and W. A. Dickerson, Jr. 1974. Parasitism of Eeliothis eggs after field releases of Tviohogramma pvetiosum in cotton. Environ. Entomol. 3: 497–500.Google Scholar
  106. Summers, T. E., E. G. King, D. F. Martin, and R. D. Jackson 1976. Biological control of Diatraea saccharalis in Florida by periodic releases of Lixophaga diatraeae. Entomophaga 4: 359–66.Google Scholar
  107. Taft, H. M. and A. R. Hopkins. 1975. Boll weevils: field popu-lations controlled by sterilizing emerging overwintering females with TH-6040 sprayable bait. J. Econ. Entomol. 68: 183–5.Google Scholar
  108. Teran, F. 0. 1976. Perspectivas do controle biologico da broca da cana-de-Acucar. Boletim Tecnico Copersucar 2: 5–9.Google Scholar
  109. Ticehurst, M. and R. A. Fusco. 1976. Release of three Apanteles spp. against the gypsy moth in Pennsylvania. J. Econ. Entomol. 69: 307–8.Google Scholar
  110. van den Bosch, R., T. E. Leigh, D. Gonzalez, and R. E. Stinner. 1969. Cage studies on predators of the bollworm in cotton. J. Econ. Entomol. 62: 1486–9.Google Scholar
  111. Vaughn, Mario R. 1975. El parasito tricogramma: revision monografica. Banco Nacional de Nicaragua, Departmento Tecnico. 23 pp.Google Scholar
  112. Weseloh, R. M. and J. F. Anderson. 1975. Inundative release of Apanteles melanoscelus against the gypsy moth. Environ. Entomol. 4: 33–6.Google Scholar
  113. Whitcomb, W. H. and K. Bell. 1964. Predaceous insects, spiders and mites of Arkansas cotton fields. Arkansas Exp. Sta. Bull. 698.Google Scholar
  114. Yepsen, R. B. 1976. Organic plant protection. Rodale Press, Inc., Emmaus, PA. 688 pp.Google Scholar

Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • R. L. Ridgway
    • 1
    • 2
    • 3
  • E. G. King
    • 1
    • 2
    • 3
  • J. L. Carrillo
    • 1
    • 2
    • 3
  1. 1.Agricultural Research ServiceU.S. Department of AgricultureBeltsvilleUSA
  2. 2.Agricultural Research ServiceU.S. Department of AgricultureStonevilleUSA
  3. 3.Institute Nacionale de Investigaciones AgricolasChapingoMexico

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