Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . Fig. 78. Fig. Cochineal and mealy bugs.—Fig. 77, cochineal, Coccus cadi, on cactus. Fij;. 78,b, adult male; c, adult female, with cottony masses removed. Fig. 79, mealy bug,Oactylopius deslruclor. Fig. 80, Daclylopius lonfrifilis: a, the larva ; *, the winged male lo8 AN ECONOMIC ENTOMOLOGY. permanence. Aniline dyes and colors are superseding it, how-ever, because of their cheapness and the greater ease with whichthey may be obtained. Mealy bugs are easily destroyed by c
Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . Fig. 78. Fig. Cochineal and mealy bugs.—Fig. 77, cochineal, Coccus cadi, on cactus. Fij;. 78,b, adult male; c, adult female, with cottony masses removed. Fig. 79, mealy bug,Oactylopius deslruclor. Fig. 80, Daclylopius lonfrifilis: a, the larva ; *, the winged male lo8 AN ECONOMIC ENTOMOLOGY. permanence. Aniline dyes and colors are superseding it, how-ever, because of their cheapness and the greater ease with whichthey may be obtained. Mealy bugs are easily destroyed by contact poisons, almostany soapy solution killing them readily. A very dilute keroseneemulsion answers every purpose, and even a weak salty solutionis satisfactory. I have used both kainit and muriate of potashdissolved in water at the rate of an ounce in a quart, and it hasbeen perfectly effective where entire plants have been dipped intoit. A tobacco decoction, one pound in one gallon of water, isalso useful, and not dangerous to the most delicate plants. Wherehouse-plants are troubled the tobacco water is very convenient,or comm
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectp, bookyear1906
