Tài nguyên được gắn thẻ với: Pest Control
165 đề mục được tìm thấy (Hiển thị 141 - 150) Trước | Tiếp theo
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19-01-1996 Information about controlling cassava mealybug (Phenacoccus manihoti) without commercial insecticides.
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19-10-1994 ECHO was contacted with a vivid description of problems of leaf-cutter ants in Guyana. The farmers even tried building water filled moats around plants but the ants built leaf bridges and crossed right over. Jack bean and Sesame may help control leaf-cutter ants.
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19-10-1995 Chickpea leaves and pods exude extremely acidic (pH 2) droplets which repel most pests from attacking the plant. But recently the pod borer, which eats the contents of the pods, has become tolerant to the acid and has devastated crops in Asia.
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19-03-1999 Horn flies have been controlled with insecticides in the U.S. since the early 1950s. An alternative, mechanical means of control (horn fly trap) was developed prior to World War II, but this never made its way into mainstream agriculture because of the growing use of pesticides following the war....
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19-02-1998 Kerosene Emulsifiable Concentrate is an insecticide (at times it acts as a fungicide) which has a very wide spectrum as far as dealing with various insects is concerned.
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19-07-1999 The diamondback caterpillar,Plutella xylostella, (larva of amoth) is a very serious pest of cabbage and other crops. When highly fertilized collard greens (B. oleracea, Acephala Group), a related vegetable, are planted completely around a field, moths lay their eggs on the collards rather than on...
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19-12-1999 In a study done by the University of Georgia, scientists showed that plants send out very specific signals for parasitic wasps to come to their aid when under attack by herbivores.
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19-10-1996 Grasshoppers and locusts cause extensive damage to a wide variety of crops and can be persistent in gardens year after year. Several ideas for their control are presented.
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20-04-2002 Plant-parasitic nematodes are a problem for farmers throughout the tropics and subtropics. Most species of nematodes are not actually plant or animal parasites, but the ones that are parasitic make up a small but important minority.
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20-07-2003 An article in the March 1998 issue of The IPM Practitioner featured the use of borates to protect wood against termites, wood-boring beetles, carpenter ants and decay fungi.
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- English (en)
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