The main chemical components of veratrine are svatin and veratrine. Flat needle crystal. Veratrum alkaloids exist in plants of Veratrum and Sniper in Liliaceae. The main plant raw materials used as pesticides are the seeds of Sniper and the roots of resveratrol. It is prepared by extracting plant materials with ethanol. Plant pesticides have contact toxicity and stomach toxicity to insects. Can be used for preventing and controlling sanitary pests such as houseflies, cockroaches, lice and the like, and also can be used for preventing and controlling agricultural pests such as cabbage caterpillar, aphids, leafhoppers, thrips, bedbugs and the like.
Chinese name
Veratrine
Foreign name
Veratrine
use
control of insect
Risk terminology
36/37/38
toxicity
rank poison
According to the test results of various crops, the product can effectively control sucking pests such as aphids, green leafhoppers and vegetable whiteflies, and LEPIDOPTERA pests such as Pieris rapae and Helicoverpa armigera.
How to use:
1. To prevent and control vegetable aphids, at the initial stage of different vegetable aphids, the 0.5% resveratrol solution is sprayed with 400-600 times diluted solution evenly for 65438 0 times, and the validity period can last for more than 65438 04 days. Other pesticides can be sprayed alternately to achieve high efficiency and delay the emergence of drug resistance.
2. To control Pieris rapae, when cabbage is in rosette stage or Pieris rapae is in larval stage, it is suitable to apply pesticide, and 0.5% resveratrol solution is sprayed evenly 1 time.