. California greenhouse pests and their control. Insect pests; Greenhouse plants. CONTROL Nicotine sulfate is effective against springtails which are contacted with the spray. More satisfactory control, how- ever, may be obtained with certain of the newer insecticides. 1. Benzene hexachloride. (See page 50.) 2. Chlordane. (See page 51.) 3. Parathion. (See page 57.) EARWIGS Importance: Earwigs are usually scav- engers, feeding on decaying plant mate- rial or on animal matter both dead and alive. One species, however, is a nuisance because it also chews all types of living plants in the gardens
. California greenhouse pests and their control. Insect pests; Greenhouse plants. CONTROL Nicotine sulfate is effective against springtails which are contacted with the spray. More satisfactory control, how- ever, may be obtained with certain of the newer insecticides. 1. Benzene hexachloride. (See page 50.) 2. Chlordane. (See page 51.) 3. Parathion. (See page 57.) EARWIGS Importance: Earwigs are usually scav- engers, feeding on decaying plant mate- rial or on animal matter both dead and alive. One species, however, is a nuisance because it also chews all types of living plants in the gardens and greenhouses. Two other species occur in California greenhouses, but they are not known to be injurious. Appearance: Earwigs are brownish, slender, and medium-sized, about 1/2 to 3/4 inch long. They possess a conspicuous pair of pincers at the back end. Wing covers, when present, are short and leathery. Development: Earwigs are nocturnal in activity, hiding in the daytime in the soil or under trash, boards, or foliage. The females lay masses of oval, white eggs. 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 Pritchard, A. Earl (Arthur Earl), 1915-1965. Berkeley, Calif. : California Agricultural Experiment Station, College of Agriculture, University of California
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Keywords: ., bookcentury1900, booksubjectgreenhousepl, booksubjectinsectpests
