Fipronil has high killing activity against aphids, leafhoppers, coleoptera pests, lepidoptera larvae and other pests. The main killing method is stomach poison, and both touch killing and internal absorption.
First, what are the effects and control objects of fipronil
1. Function
(1) Fipronil is a new type of pyrazole broad-spectrum insecticide, with gastric toxicity, contact, and internal absorption, and the insecticidal mechanism is to inhibit the nerve conduction system of insect gamma-aminobutyric acid as a transmitter.
(2) Fipronil has high activity against flies, aphids, plantworms, leafhoppers, coleoptera pests, lepidoptera larvae and other pests, is harmless to crops, and will decompose slowly in soil.
2. Prevention and control objects
(2) Fipronil can be used on vegetables, corn, cotton, potatoes, soybeans, rice, sorghum, rape, fruit trees, tobacco, tea trees and other crops, and is also suitable for forest, animal husbandry and public health.
Second, fipronil and imidacloprid which effect is good
1, the use of fipronil effect is usually better than imidacloprid, but fipronil can only be used in dry fields (will cause toxicity to aquatic organisms), while imidacloprid effect is not as good as it, but will not cause too much pollution to the environment, both have advantages and disadvantages, can be used according to the actual situation.
2, Fifionitrile is effective on aphids and other stinging mouthparts insects, some lepidoptera pests, the underground pests in our country are mainly tiger, gold needle, mole quilla, grub these four kinds, of which tiger is the larva of lepidoptera pests. Fipronil suspension seed coating agent can be used to control corn grubs.
3. The main function of imidacloprid is to prevent and control homoptera stinging and sucking oral pests, and it is also widely used in health insecticides.
Fipronil has a wide insecticidal spectrum, with contact, stomach toxicity and moderate inhalation. It can control both underground pests and above-ground pests. It can be used for stem and leaf treatment, soil treatment, and seed treatment. Spraying 25~50g of active ingredients/ha of leaf surface can effectively control potato leaf beetle, Diamondback moth, pink moth, Mexican cotton boll weevil and flower thrips. The use of 50~100g of active ingredients per hectare in paddy fields can be a good control of borers, brown planthopper and other pests. Spraying 6~15g of active ingredients per hectare of leaf surface can control the pests of Steppe Locust and Desert Locust. Applying 100~150g of active ingredients/ha to the soil can effectively control corn root beetle, golden needle worm and ground tiger. 250~650g effective ingredients / 100kg seed treatment of corn seeds, can effectively control corn borer and ground tiger. The main control objects of this product include aphids, leafhopper, lepidoptera larvae, flies, coleoptera and other pests. It is recommended by many pesticide experts as one of the preferred varieties to replace highly toxic organophosphorus pesticides.
Dosage:
5% Fipronil suspension 2500 times liquid spray control of Diamondback moth (young larval peak), butterfly butterfly (before the second age), moth moth (adult and larval hatching stage), whitefly tabaci (adult and nymphal peak stage), Flavirostris (adult and nymphal peak stage), simian leaf beetle (adult and larval peak stage).
Note:
Fipronil is highly toxic to shrimp, crabs and bees, and is easy to kill natural enemies such as spiders and bugs. The use of fish, crab and beekeeping areas in rice fields is restricted, and the field water cannot be discharged into fish ponds and rivers after application in general areas to avoid polluting water sources and poisoning fish and shrimp.