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repels tomato hornworm and cabbage worms [2] Castor bean: repels moles [3] Catnip: repels ants, flea beetles, aphids, the Japanese beetle, squash bugs, weevils, [2] the Colorado potato beetle, the cabbage looper, [3] and cockroaches. [4] May attract cats. Chamomile: repels flying insects [4] Chives: repels carrot fly, Japanese beetle, [2] and ...
White oil is an insecticide spray used for controlling a wide range of insect pests in the garden. The spray works by blocking the breathing pores of insects, causing suffocation and death. It is effective in the control of aphids, scale, mealybug, mites, citrus leafminer and other smooth skinned caterpillars. [1] "
Chlorothalonil (2,4,5,6-tetrachloroisophthalonitrile) is an organic compound mainly used as a broad spectrum, nonsystemic fungicide, with other uses as a wood protectant, pesticide, acaricide, and to control mold, mildew, bacteria, algae. [2] Chlorothalonil-containing products are sold under the names Bravo, Echo, and Daconil.
The term "biological control" was first used by Harry Scott Smith at the 1919 meeting of the Pacific Slope Branch of the American Association of Economic Entomologists, in Riverside, California. [3] It was brought into more widespread use by the entomologist Paul H. DeBach (1914–1993) who worked on citrus crop pests throughout his life.
Horticultural oils are prepared from crude petroleum fractions by distillation and various chemical processes. [1] [2] [3] This removes or hydrogenates the unsaturated (alkene and aromatic) molecules, which cause plant damage (phytotoxicity), and delivers the C20-C25 fractions, which are the most effective insecticides.
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]
These aphids are also the vectors of about 30 plant viruses, mostly of the nonpersistent variety. The aphids may not be the original source of infection, but are instrumental in spreading the virus through the crop. [9] Various chemical treatments are available to kill the aphids and organic growers can use a solution of soft soap. [12]
The peas and beans provide natural shade for the spinach. See cauliflower notes regarding mutualism with spinach. ... tomatoes: Ants, aphids, onion fly, [15] cabbage ...