What pesticide works well for aphid control?
Aphids, also known as greasy bugs or honey bugs, are a type of phytophagous insect. Aphids are distributed very widely across the world, but are mainly concentrated in temperate regions. On crops, what pesticide should be used to control aphids?
1. What pesticide to use for aphid control
Pesticides available for aphid control include: malathion emulsion, acetamiprid emulsifiable concentrate, cyanide · fenvalerate emulsifiable concentrate, imidacloprid wettable powder, abamectin, etc.
2. Control methods
1. Chemical control
When large numbers of aphids are found, pesticide must be sprayed promptly. Use a 50% malathion emulsion at 1000 times dilution, etc., and spray the plants 1 to 2 times. For aphids such as the peach powdery aphid that are themselves covered with wax powder, when applying any pesticide, add 1% soapy water or laundry detergent to increase adhesion and improve the control effect.
2. Manual control
In autumn and winter, whitewash the base of the tree trunk to prevent aphids from laying eggs; combined with pruning, cut off damaged branch tips and spent flowers and burn them in a concentrated manner to reduce the overwintering population; in winter, scrape off or brush off the dense overwintering egg masses on the bark, and promptly clean up fallen branches and leaves to reduce overwintering eggs; in spring, when a small number of aphids are found on flowers, they can be brushed clean with a writing brush dipped in water, or the potted flowers can be tilted and rotated under running tap water to rinse them off.
3. Protect natural enemies.
Aphids have many natural enemies, including ladybugs, lacewings, hoverflies and parasitic wasps, which have a strong suppressive effect on aphids. Apply broad-spectrum pesticides as little as possible, avoid applying pesticides during the peak activity period of natural enemies, and where conditions permit, artificially rear and release aphid natural enemies.
Aphids are also one of the most destructive pests on Earth. About 250 species among them are pests that cause serious harm to agriculture, forestry and horticulture. Aphids vary in size, with body lengths ranging from one to ten millimeters.