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THE TOXICITY OF THE VAPOURS OF VOLATILE ORGANIC COMPOUNDS TO THE “RED SPIDER” MITE (TETRANYCHUS TELABIUS L.)
Author(s) -
READ WILFRID H.
Publication year - 1932
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1932.tb04333.x
Subject(s) - spider mite , vapours , toxicity , mite , tetranychus , biology , acaricide , branching (polymer chemistry) , toxicology , organic chemistry , botany , chemistry , neuroscience
SUMMARY1 With the exception of methyl formate the toxicity towards the “red spider” mite of the normal aliphatic alcohols and their formates at first increases as the series is ascended. 2 Methyl formate is an exception to the above rule and is the most toxic of the formates tested. 3 The normal compounds are more toxic than their isomers, the toxicity decreasing with increased branching of the chain. 4 The above decrease is greatest when the branching is at the a position to the hydroxyl or carboxyl group. 5 The relative effects of the compounds on plants are similar to their effects on the mite, but the differences due to molecular structure are more pronounced. 6 Control of the mite cannot be obtained on tomato plants without injury by the use of any of the substances tested.