Because the insect body of the insect is wrapped in a layer of cuticle carapace, it is generally sprayed directly with drugs, otherwise it is difficult to work, but the damage of drug spraying to flowers and plants is also relatively large. Xiaobian will introduce you to several methods of preventing and controlling insect shell insects that do not apply drugs, and flower friends in need can understand it together.
Insects
1, with white wine on water, the ratio is 1:2, when treating insects, pour through the surface layer of the potting soil.
2, with vinegar (rice vinegar) 50 ml, the small cotton ball into the vinegar soaked, with the wet cotton ball on the affected flowers and tree stems, leaves gently rub can be the shell insects off to kill.
3, with diesel, washing powder, water according to the ratio of 100:6:60 into the mother liquor, dilution of water or 30% of the liquid, the kumquat, cycad on the mesozoite carefully sprayed, after 1 week, most of the meselars become dry state.
4. Repeatedly rub the affected plants with 75% alcohol, which can kill adults and larvae at the same time. This method is only used when the insect indices are low or the potted seedlings are small, and are not suitable for large-scale planting and insect indices.
5. Use the leachate of onion or garlic to control mesozoans. When using, take 2 garlic heads and add 2 kg of water to soak for half a day, then take its clarifier and spray the infested part, once every 3-4 days, for 3 consecutive days to kill all pests. And it can also have a bactericidal effect, inhibiting the propagation and spread of germs.
6, the 30 or so cigarette butts added to 500g of water soaked for a day and night, filtered, add a little soap liquid can be sprayed, it is effective for the nymphs of the mesozoans.