Evaluation of Shell SD 8447, SD 8448, and SD 8436 as Candidate Systemic Insecticides for Control of Common and Northern Cattle Grubs134

Autor:	Wm. M. Rogoff, Walter S. Bigley, G. H. Gretz, Richard D. Orchard, A. R. Roth
Rok vydání:	1968
Předmět:	Hypoderma bovis Ecology Diethyl phosphate General Medicine Biology Toxicology Northern cattle grub Animal science Insect Science Toxicity medicine biology.protein Mammalian toxicity medicine.symptom Weight gain Common cattle grub Cholinesterase
Zdroj:	Journal of Economic Entomology. 61:487-490
ISSN:	1938-291X 0022-0493
DOI:	10.1093/jee/61.2.487
Popis:	Three materials of low mammalian toxicity from the Shell Development Company, SD 8447 (2-chloro-1-(2,4,5-trichlorophenyl) vinyl dimethyl phosphate), SD 8448 (2-chloro-1-(2,4,5-trichlorophenyl) vinyl diethyl phosphate), and SD 8436 (2-chloro-1-(2,4-dibromophenyl) vinyl dimethyl phosphate) showed moderate systemic activity against the northern cattle grub Hypoderma bovis (L.), and the common cattle grub H. lineatum (de Villers), when they were applied to calves by the pour-on procedure. Although early tests indicated 89-100% control with these materials, later tests produced 41 and 60% control on animals treated with SD 8447 at 30 g/head and 46 and 73% control on animals treated with SD 8436 at 20 g/head. SD 8448 was not included in the later tests. The materials produced no significant cholinesterase depression, no indication of toxicity, and no significant differentials in weight gain.
Databáze:	OpenAIRE
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