Titlebook: Chemistry of Pesticides; N. N. Melnikov,Frances A. Gunther,Jane Davies Gunt Book 1971 Springer-Verlag New York Inc. 1971 Chemistry.Pestici

SPER

Substance-Abuse

Aldehydes, ketones, and quinones, is a bactericide and fungicide. It is employed to control flies and has been used for several decades as a disinfectant for grain seeds. It gives especially good results in the disinfection of glumaceous crops, the seeds of which are treated with a concentration of 0.1–0.13% of the compound. Parafo

Neutral-Spine

Aliphatic carboxylic acids and their derivatives,em. For the pea aphid the insecticidal activity of the acids and their salts increases with increasing molecular weight and reaches a maximum in lauric acid, after which it falls. The unsaturated acids are more active than the corresponding saturated analogs.

HEAVY

Aromatic carboxylic acids and their derivatives,ali metals and ammonia is low. Esters of a number of aromatic acids have appreciable acaricidal activity. Thus, the benzyl ester of benzoic acid is powerful acaricide for some species of mites. Introduction of halogen atoms into the benzoic acid and benzyl alcohol groups increases the biological act

vertebrate

Aryloxalkylcarboxylic acids and their derivatives,this group are herbicides, fungicides, and plant growth regulators. The aryloxyalkylcarboxylic acids have the greatest value as herbicides and plant growth regulators. With respect to their scale of manufacture and use, they occupy first place among compounds of all classes. There is a trend toward

潔凈

Derivatives of carbonic acid,cticidal or acaricidal activity. In particular, the simplest esters of chlorocarbonic acid such as methyl, ethyl, and isopropyl chlorocarbonates are active fumigants; but they are not used because they are easily hydrolyzed by water, forming HC1. The insecticidal activity of the dialkyl carbonates i

obligation

calumniate

Derivatives of thio- and dithiocarbamic acids,study it has been established that most derivatives of the thiolocarbamic acids are active herbicides that easily penetrate into plants and move through the xylem. The most effective herbicides are the .-alkyl .- dialkylthiocarbamates, which act selectively on annual grasses and some dicotyledons an

epidermis

Derivatives of urea and thiourea, tolerate the use of comparatively large dosages of this compound without any harm. But even the simplest derivative of urea, biuret, has appreciable phytocidal effect and at dosages of 40–70 kg./ha. it inhibits the growth of many monocotyledonous and dicotyledonous plants. It is suitable for the co

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