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Insecticidal soap is used to control many plant insect pests. Soap has been used for more than 200 years as an insect control. [1] Because insecticidal soap works on direct contact with pests via the disruption of cell membranes when the insect is penetrated with fatty acids, the insect's cells leak their contents causing the insect to dehydrate and die. [2]
Their insecticidal and insect-repellent properties have been known and used for thousands of years. Pyrethrins are gradually replacing organophosphates and organochlorides as the pesticides of choice as the latter compounds have been shown to have significant and persistent toxic effects to humans. They first appeared on markets in the 1900s ...
Its insecticidal activity has relatively low mammalian toxicity and an unusually fast biodegradation. Their development coincided with the identification of problems with DDT use. Their work consisted firstly of identifying the most active components of pyrethrum , extracted from East African chrysanthemum flowers and long known to have ...
Murphy Oil Soap is an American brand of cleaning product that is manufactured by Colgate-Palmolive. [1] In 1910, Jeremiah Murphy, director of the Phoenix Oil Company, bought the formula for Murphy Oil Soap from a recent immigrant from Germany. The soap, with its potassium vegetable oil base, and no phosphates, proved to be very popular in Ohio.
The avermectins are a group of 16-membered macrocyclic lactone derivatives with potent anthelmintic and insecticidal properties. [ 2 ] [ 3 ] These naturally occurring compounds are generated as fermentation products by Streptomyces avermitilis , a soil actinomycete .
Its insecticidal properties were not known until the 1940s. Technical grade HCH, as a mixture of isomers is synthesized from benzene and chlorine in presence of ultraviolet light . The resulting product mixture comprises 65-70% α-HCH, 7-10% β-HCH, 14-15% lindane (γ-HCH), approximately 7% δ-HCH, 1-2% ε-HCH, and 1-2% other components.
An insecticidal soap solution can be an effective household remedy to control aphids, but it only kills aphids on contact and has no residual effect. Soap spray may damage plants, especially at higher concentrations or at temperatures above 32 °C (90 °F); some plant species are sensitive to soap sprays. [113] [129] [130]
Cypripedioideae is a subfamily of orchids commonly known as lady's slipper orchids, lady slipper orchids or slipper orchids. Cypripedioideae includes the genera Cypripedium , Mexipedium , Paphiopedilum , Phragmipedium and Selenipedium . [ 1 ]