污污视频在线观看免费_国产精品嫩草影院88av漫画_大尺度激情网站_女人与公拘交酡全过程1人

Abamectin

Abamectin has toxic and contact effects on mites and insects, and can not kill eggs. After the contact of abamectin, adults, nymphs and insect larvae, paralysis symptoms occurred, inactive and not feeding, and died 2~4 days later.Because it does not cause rapid dehydration of insects, abamectin has a slower lethal effect. Abamectin on predatory insects and parasitoids have direct contact toxicity, but because of little residues on the plant surface, so the damage is very small insects. Abamectin is adsorbed in soil and does not move, will be decomposed by microorganisms, thus has no accumulation in the environment. It can be used as an integral part of integrated control.

Lambda-cyhalothrin

lambda-cyhalothrin has aversion to insects and poison, knock down effect, wide pesticidal spectrum, high activity, rapid efficacy, spraying rain erosion resistance, but the long-term use is easy to produce resistance to it, has certain control effect on sucking pests and mite. Use in the early stage of mite, the number of mites can be increased. When mites have occurred in large quantities, it can not control their quantity.

atrazine

This product is a selective, pre - and post - seedling closed herbicide. Root absorption was dominant and stems and leaves were seldom absorbed. It is easy to be leached to deeper soil by rain water. It is also effective for some deep roots, but it is easy to cause phytotoxicity. Longer duration of efficacy. It can kill many kinds of annuals, grasses and broadleaf weeds.

Oxyfluorfen

Selective pre - or post harvest herbicides. It was a contact killing herbicide. Exert its herbicidal activity in the presence of light. Mainly through the coleoptile and hypocotyl into the plant, less absorbed by the roots, and a very small amount of transport through the roots into the leaves.