Common chemicals used to control mango diseases and insect pests are culled in one time.
Physical and chemical properties, appearance of dark yellow liquid, density 1.04-1.08 kg / L, storage stability for 2 years, can not be mixed with alkaline pesticides. Highly toxic insecticides, which are toxic to mammals, birds and bees, should abide by the safety regulations for the use of highly toxic pesticides. Quick culling, also known as methamidophos, is a broad-spectrum organophosphorus insecticide with contact, stomach toxicity and penetration, and has efficacy in killing insects with chewable and piercing mouthparts. The drug has osmotic effect, can infiltrate into plant tissues, has a long residual period, is especially effective for scale insects, and has a certain control effect on mites. The insecticidal mechanism is to inhibit the activity of cholinesterase. The control objects and methods are mainly to control many kinds of shell insects and snails, which must be applied during the epidemic period of young scale and young mites, with an interval of 10-15 days and 2-3 times. The concentration of foliar spraying is 1000-1500 times, the control effect is good, and the residual period is 15-20 days.
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Control of mango longicorn beetles
Longicorn beetles belong to Coleoptera and Cerambycidae, which occur in mango producing areas of southern China. By feeding on the branches with larvae, the growth of the damaged plants is weakened, and in serious cases, the damaged branches are easy to be broken by the wind. The insect produces one generation a year, and it overwinters mainly as larvae, and a few pupae or adults can also overwinter in the pores. The following year.
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Current management of pomelo, mango and plum
Thin-skinned muskmelon is mainly cultivated in open field and high border in the south. In the middle and lower reaches of the Yangtze River, it is suitable for direct seeding in the middle and lower reaches of the Yangtze River or transplanting cotyledon seedlings in the middle and lower reaches of the Yangtze River. if plastic film mulching is used, it can be direct seeded or planted 5 days earlier than conventional. First, soil selection and stubble arrangement should be higher topography, good drainage, and melon.
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