. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. 224 ECONOMIC ENTOMOLOGY Canada, with the exception of Southern Ontario, there is but one brood a year, with a very small percentage transforming to make a partial second generation, but further south there are two or even three broods. Parasites, Etc.—Trichogramma pretiosa, Trombidium on eggs; Pinipla annulipes, Macrocentrus delicatus, Ascogaster carpocapsa, Itoplectis marginatus, Hypostena variabilis and Tachinophyto
. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. 224 ECONOMIC ENTOMOLOGY Canada, with the exception of Southern Ontario, there is but one brood a year, with a very small percentage transforming to make a partial second generation, but further south there are two or even three broods. Parasites, Etc.—Trichogramma pretiosa, Trombidium on eggs; Pinipla annulipes, Macrocentrus delicatus, Ascogaster carpocapsa, Itoplectis marginatus, Hypostena variabilis and Tachinophyto on larvae;. Pig. 138.—Bud moth. I, Adult moth; 2, larva; 3, pupa (dorsal view); 4, pupa (ventral view). {After DuPorie.) some beetles (Tenebroides corticalis) two species of ants, Lasius niger and Solenopsis molesta, woodpeckers and chickadees. (Consult Bull. 142, Cornell Ag. Exp. St.; Bull. 41, 80, 97, 115, 189, 252, n. s., Div. Ent., U. S. Dep. Ag.; Bull. 187, Ont. Dep. Agric.) Control.—Spray with arsenical just after the blossoms fall, and again in 3 weeks; destroy fallen fruit; band trees about July ist; fumigate fruit-houses with sulphur to kill the moth (Fig. 136 and 137).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lochhead, William, 1864-. Philadelphia, Blakiston
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
