. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 206 PESTS OF GAEDEN AND FIELD CROPS plants will die. Cucumbers and tomatoes usually are badly infested, but almost any vegetables or flowering plants grown in greenhouses may be attacked. The most effective remedy is fumigation â nith hydrocyanic acid gas. Some benefit wiU be derived from sprajing with whale-oil soap, IJ ounces to 1 gallon of water. Mealy Bugs Slow-moving, oval, soft-bodied bugs, one tenth to one SKth of an inch long, the body covered with a whitish, powderj' secretion, infest various plants
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 206 PESTS OF GAEDEN AND FIELD CROPS plants will die. Cucumbers and tomatoes usually are badly infested, but almost any vegetables or flowering plants grown in greenhouses may be attacked. The most effective remedy is fumigation â nith hydrocyanic acid gas. Some benefit wiU be derived from sprajing with whale-oil soap, IJ ounces to 1 gallon of water. Mealy Bugs Slow-moving, oval, soft-bodied bugs, one tenth to one SKth of an inch long, the body covered with a whitish, powderj' secretion, infest various plants grown under glass. In the South they are a nuisance. Mealy Bugs on melon. Original. on citrus fruits. The Citrus Mealy Bug, Pseudococcus ciiri Risso, and a closely related form, Pseudococcus longispinus Targ., are conmion species. The young are small, red, and fairly active at first. The adult males are â ^â inged. Contact insecticides, especially such as contain soap or oU, are effec- tive remedies. They should be applied with considerable force in order to penetrate the waxy powder with which the bodies of the insects are 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 O'Kane, Walter Collins, b. 1877. New York : The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
