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biological insecticides

1-14 of 14 Books

View Insect antifeedants By Opender Koul
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Insect antifeedants

By Opender Koul

View Insecticides of natural origin By Dev, Sukh
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Insecticides of natural origin

By Dev, Sukh

View The potato leafhopper By F. W. Poos
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The potato leafhopper

By F. W. Poos

View Comparative toxicity tests of anabasine, nornicotine, and nicotine By G. T. Bottger
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Comparative toxicity tests of anabasine, nornicotine, and nicotine

By G. T. Bottger

View A review of the insecticidal uses of the rotenone-bearing plants, 1938-1944 By United States.: Bureau of Entomology and Plant Quarantine

A review of the insecticidal uses of the rotenone-bearing plants, 1938-1944

A review of the insecticidal uses of the rotenone-bearing plants, 1938-1944

By United States.: Bureau of Entomology and Plant Quarantine

View Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part III, homoptera By United States.: Bureau of Entomology and Plant Quarantine

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part III, homoptera

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part III, homoptera

By United States.: Bureau of Entomology and Plant Quarantine

View Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia and related plants. Part VII, Lepidoptera By Roark

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia and related plants. Part VII, Lepidoptera

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia and related plants. Part VII, Lepidoptera

By Roark

View Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part XI, Acarina By United States.: Bureau of Entomology and Plant Quarantine

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part XI, Acarina

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part XI, Acarina

By United States.: Bureau of Entomology and Plant Quarantine

View Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part IV, hemiptera By United States.: Bureau of Entomology and Plant Quarantine

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part IV, hemiptera

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part IV, hemiptera

By United States.: Bureau of Entomology and Plant Quarantine

View Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia and related plants. Part II, thysanoptera By United States.: Bureau of Entomology and Plant Quarantine

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia and related plants. Part II, thysanoptera

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia and related plants. Part II, thysanoptera

By United States.: Bureau of Entomology and Plant Quarantine

View Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants By United States.: Bureau of Entomology and Plant Quarantine

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants

By United States.: Bureau of Entomology and Plant Quarantine

View Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part VIII, Hymenoptera By United States.: Bureau of Entomology and Plant Quarantine

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part VIII, Hymenoptera

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part VIII, Hymenoptera

By United States.: Bureau of Entomology and Plant Quarantine

View Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part VI, coleoptera By United States.: Bureau of Entomology and Plant Quarantine

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part VI, coleoptera

Review of the insecticidal uses of rotenone and rotenoids from derris, lonchocarpus (cube and timbo), tephrosia, and related plants. Part VI, coleoptera

By United States.: Bureau of Entomology and Plant Quarantine

View Plant poisons for pests By United States. Department of Agriculture. Radio Service
Cover of Plant poisons for pests by united states. department of agriculture. radio service

Plant poisons for pests

By United States. Department of Agriculture. Radio Service