Title: Toxicity of DDT and Related Compounds to Certain Lepidopteran Cotton Insects12
Abstract:Deutero-DDT (1,1,1-trichloro-2,2-bis (p-chlorophenyl) ethane-2d2), applied as a conventional low-volume spray, was the most effective of several diphenyl aliphatics against larvae of the tobacco budwo...Deutero-DDT (1,1,1-trichloro-2,2-bis (p-chlorophenyl) ethane-2d2), applied as a conventional low-volume spray, was the most effective of several diphenyl aliphatics against larvae of the tobacco budworm, Heliothis virescens (F.); the bollworm, H. zea (Boddie); and the cabbage looper, Trichoplusia ni (Hübner). In topical applications Dilan® (a mixture of 1 part of 1,1-bis(p-chloro-phenyl)-2-nitropropane (Prolan®) and 2 parts of 1,1-bis (p-chlorophenyl)-2-nitrobutane (Bulan®), was the most toxic compound to tobacco bud worm larvae, and Prolan applied topically was more toxic than Bulan to bollworm and tobacco budworm larvae. Ultra-low-volume sprays of DDT were more effective than conventional low-volume sprays to pink bollworm, Pectinophorn gossypiella (Saunders), adults immediately after application. The LD50 values for DDT applied topically to several strains of cab bage loopers collected throughout the country were almost always greater than that for our laboratory strain (0.2 mg/g) a strain from Ohio had an LD50of 6.8 mg/g, 34 times that of the laboratory strain.Read More
Publication Year: 1969
Publication Date: 1969-04-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 2
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