The varieties of pesticides commonly used in production today are: acetamiprid, buprofezin , flubendiamide, chlorbenzuron, insecticidal double, insecticidal, imidacloprid, ruthenium, thioxanthone, hydrazine Anthrone and the like. In order to give full play to the insecticidal effect and use effect of specific insecticides, we must start with understanding the characteristics of the drug, mastering its correct use and clearing relevant precautions, especially related to some key technologies. The link must be strictly controlled to achieve the desired results.
Azadirachtin (also known as flubenzuron, acetamiprid, fluridazine, and cytoprotective): is an insecticide with high insecticidal activity and low toxicity to humans and animals, by inhibiting the epidermal chitin of the pest ( The synthesis of a substance on the epidermis of the pest prevents the normal growth and development of the pest, mainly to prevent the pest from peeling and dying. The insecticidal spectrum has a high insecticidal activity, but the insecticidal action is very slow. It takes 3 days after the spraying to start to show the efficacy, and after 5 days, the effect is fully exerted, and the efficacy lasts for more than half a month. For crop safety, the effects on natural enemies and other beneficial organisms are small, and the pests that are resistant to pyrethroids and organic phosphorus are more effective, and are basically ineffective against red spiders. It is ineffective for sucking mouthparts pests such as aphids, leafhoppers, and planthoppers. It is mainly a stomach poisoning effect, which requires the pests to feed into the body before they can function. There is no insecticidal effect such as systemic and fumigation. Usage: Prevention and control of cotton bollworm and red bollworm need to be sprayed in the early stage of egg hatching. Before the larvae of the first instar larvae are sprayed, use 5% emulsified milk 60~100ml per 667 m2 to spray on water; In the 1st and 2nd instars, the insects are sprayed with 2000~4000 times liquid; the vegetable pests Plutella xylostella, Pieris rapae, Cabbage leaf moth, Spodoptera litura, and pea pods are sprayed with 5% emulsifiable concentrate 1000~2000 times; Carnivorous insects, citrus leaf miner, pear star caterpillar, leaf curler, poisonous moth, etc., sprayed with 5% emulsifiable concentrate 1000~2000 times; control tobacco budworms in the egg hatching period to the early larval stage, with 5% emulsifiable concentrate 1000~2000 Double spray. Also note that the drug has long-term toxicity to silkworms and should not be used in mulberry gardens.
Buprofezin: also known as Yadele, 虱 虱, 虱 虱, 优 得, is a kind of insecticide with special effects on the planthopper, low toxicity to humans and animals, has contact and stomach toxicity, no internal absorption And fumigation and insecticidal action, high insecticidal activity, but the insecticidal speed is slow, generally 3 to 5 days effective, the efficacy period is about 30 days. This medicine has special effects on nymphs and is safe for natural and beneficial insects. Control rice brown planthopper, whitebacked planthopper, Laodelphax striatellus and black-tailed spider mites, sprayed with 25% wettable powder 20~30g at the peak of nymphs; vegetable whitefly, low density of insects in the younger nymphs Time control, use 25% wettable powder 25~30g per 667m2, spray on water (Note: This agent can only be used for spraying, not for soil treatment agent).
Fluproxil: also known as card gram, is a low-toxic and selective insecticide. The mechanism of poisoning insects is to prevent the pests from molting, so that the pests can not grow normally and die, and the killing effect on the cockroaches is good. It is ineffective against adult mites, has contact and stomach poisoning, no systemic fumigation, and is safe for crops, natural enemies and other beneficial insects. Usage: Control cotton pests, cotton bollworm and red bollworm, spray before the larvae work, use 5% emulsifiable concentrate 70~100ml per 667 m2, spray on water, bridgeworm, leafhopper, lamp moth, moth In the germination period of 1~2 instar larvae, 30~50ml of 5% emulsifiable concentrate per 667m2, cotton red spiders use 60~90ml per 667m2 in the stage of increasing nymphal density, and spray on water; vegetable pests, Spodoptera litura, In the second year of larval larvae, the larvae of the second instar larvae, 50~60ml of 50% emulsifiable concentrate per 667m2, and the genus of eggplant red spider, bean red spider, etc. At the beginning of the period, 40~60ml of water is sprayed per 667m2. The apple leafhopper is sprayed with 5% emulsifiable concentrate 1000~1500 times before and after apple blossoming. It is applied to apple leaf curler, citrus red spider, hibiscus, peach heartworm, citrus leaf. Moths can be sprayed with 1000~2000 times liquid (Note: This medicine can not be mixed with alkaline substances, and can not be used in mulberry garden and silkworm field).
Diflubenzuron: It is a selective low-toxic insecticide. Its mechanism of action is the same as that of acetamiprid. The insecticidal rate is slow, the efficacy period is 15~20 days, it can withstand rainwater scouring, and it is safer for beneficial insects. It is characterized by its effectiveness against a wide range of pests. It is ineffective for sucking mouthparts such as aphids, spider mites and planthoppers. Controlling dry crop pests such as armyworms, in the 2nd instar larvae, use 25% suspension agent 100~150ml per 667m2, spray on water, cotton bollworm, red bollworm, corn borer and other pests in the egg hatching period or beginning At the peak of the instar larvae, water sprayed with 25% suspension agent 100~150ml per 667m2, bridgeworm, cotton leaf moth, and moth, etc., sprayed with 75~100ml per 667m2 in the 2nd instar larvae. Pests such as Pieris rapae, Cabbage worm, Spodoptera litura, Spodoptera exigua, etc. should be used in the 2nd instar larvae, with 25% suspension agent 50~100ml per 667m2, Plutella xylostella in the 1st to 2nd instar larvae, every 667m2 Spray water with 25% suspension 100~150ml. Pests such as apple leaf roller moth, citrus leaf roller moth, pear star caterpillar, boat-shaped caterpillar, moth, moth, etc. can be sprayed with 25% suspension agent 1000-2000 times. Tobacco budworm is sprayed with 25% suspending agent 100~150ml in the egg priming period or the larvae of the early larvae (Note: This product can not be mixed with alkaline substances, and it is forbidden to use in mulberry garden and silkworm field).
Insecticide double: It is a structure based on the structure of the toxin of the silkworm, a biomimetic synthetic insecticide. It has a strong contact and stomach toxicity, and has a certain fumigating effect. It kills the pests and causes the pests to lose their response to external stimuli and become paralyzed. The most prominent feature of cockroaches, eventually death, is the strong internal absorption of insecticides, which can be absorbed by plant roots and leaves and transmitted in plants to kill pests. It can be absorbed from the roots of plants and distributed to the whole plant after one day, and the distribution is even, but the insecticidal speed is slow, generally effective in 3 days, and the effective period is about 10 days. Insecticides have a good control effect on a variety of pests in rice. The stem borer, the stem borer and the big cockroach use 25% water agent per 667m2 when the dead heart seedlings and the dry sheath begin to appear in the hatching period of the locust eggs. ~200ml, water pouring, can also be sprayed for more than 10 days, or 3% granules per 667m2 with 1.5~2kg directly. This method is convenient and fast, and the effective period is 12~15 days. In addition, the insecticidal pair has a good killing effect on the larvae that have broken into the rice stem. The control of rice leaf roller is about 200 ml of 25% water agent per 667 m2 in the larvae 3 years old, and the effect is about 10 days. Insecticides also have a killing effect on other pests such as thrips. The control of Plutella xylostella and Pieris rapae, 200 ml of 25% water agent per 667 m2, spray on water, and spray the water with 200% to 250 ml of 25% water agent when the seedlings start to be damaged. When the new shoots are 0.2~0.5cm, the citrus leaf miner is sprayed with 25% water solution 600~800 times. Citrus scutellaria, black thorn powder, pear star caterpillar, etc. are sprayed with 25% water agent 500-700 times solution. Sugarcane strips and large alfalfa should be sprayed with 25% water solution per 667m2 at the peak of larval hatching, and can also prevent pests such as sugarcane and thrips. Note: The insecticidal double is moderately toxic to humans and animals. It must be strictly operated according to the regulations. Once poisoning occurs, headache, dizziness, abdominal pain, physical weakness, nausea and vomiting, drooling, sweating, dilated pupils, etc. should be immediately Lift off the application site, remove pollution, and promptly send it to the hospital for rescue. This product should be used for the medicinal damage of cruciferous vegetables, beans and cabbage such as cabbage and cabbage in the summer. In order to improve the efficacy and improve the wet spread, it is best to add 1% of the liquid. Neutral washing powder; when using insecticidal double to control rice pests, the field should maintain 3~5cm water layer for 2~3 days; it can't be mixed with alkaline substances.
Insecticide: It is similar to the insecticidal double. It is a silkworm poisonous insecticide. It has contact, pest and systemic insecticidal effects on pests. It has a strong systemic insecticidal effect. The insecticidal mechanism is The pests lose their response to external stimuli and gradually die of paralysis and sputum poisoning. Usage: Control rice stem borer, stem borer and giant salamander. When rice seedlings are dry, use 50% crystal 75~100g per 667m2, and use 100~140g in rice heading stage to pour water. Sugarcane aphids were applied to the roots with 3.6% granules and 4 kg per 667 m2. Soybean hawk moth is sprayed with water at 50-crystals of 15 to 32 g per 667 m2 (see insecticidal doubles for caution).
Imidacloprid: also known as Kang Fuduo, 蚜虱 ,, 虱蚜 虱蚜, Gao Qiao, Bi Dan. It is a selective low-toxic insecticide with a strong systemic insecticidal effect. It has a good effect on sucking mouthparts pests, but it is not effective against mites and nematodes, because it has a strong internal squirt. The insect effect can be directly used for soil treatment or seed treatment. The insecticidal mechanism is also applied to the nervous system of the pest, so that the pest loses the nerve conduction function and finally kills the pest, which has a good effect on controlling various rice planthoppers. It is advisable to adopt a radical cure and control the control strategy of the second generation. During the peak period of adult parasite spread, the second and third generation nymphs will be controlled at the peak of the incubation period, with 20% concentrated soluble 7~10mg per 667m2, or 10% per 667m2. Wettable powder 50~100g. To control the greenhouse or open field whitefly, in the ascending period of the nymphal worm, use 20% concentrated solvent 15~30ml per 667 m2, spray on water, control 5~8ml of cabbage caterpillar, spray on water. Cotton pests are treated with 70% wet dressing for cotton seeding. This is because it has a strong systemic action. It is absorbed by the roots after seed dressing. It can control aphids in cotton seedlings, every 667m2500~714g, add water 1.5~2L, mix In a paste, mix 1000g of cotton, cut it evenly and then sow. The control of pear hibiscus should be sprayed with 20% concentrated solvent 2500~5000 times in the egg stage and the first generation nymph. The germination rate of citrus leaf miner in the field is 25% with 1000~2000 times liquid spray. Apple jaundice should be sprayed with 5000~6000 times liquid when the insects rise. (Note: This product is not effective against cockroaches. When the worms occur at the same time, add acaricide; it should not be sprayed under strong sunlight).
Ruijinte: also known as fipronil, is a broad-spectrum moderately toxic insecticide with strong insecticidal activity, low dosage, slow insecticidal rate, long potency, contact and stomach toxicity, and certain Systematic insecticidal action, its outstanding feature is to promote crop growth, increase crop yield, and be safe for natural and beneficial insects. Control various rice planthoppers in the nymphal stage with 5% suspension agent 30~60ml sprayed on water every 667m2, but keep a certain water layer in the paddy field, aphids and rice leaf roller in the egg-ching period to the young larval stage For every 667m2, use 5% suspending agent 30~55ml, spray on water, prevent and cure rice weevil about 5 days after transplanting, spray water with 5% suspension agent 60~80ml per 667m2. Plutella xylostella should be used at a peak of larvae with 5% suspension of 18~30ml per 667m2, sprayed on water, and resistant to pyrethroids and organophosphorus. Liriomyza sativae is applied at the peak of egg-to-egg hatching, and sprayed with 5% suspension of 40~60ml per 667m2.
Thiacin: a different name, it is a low-toxic acaricide. It has a good effect on a variety of red spiders, but mainly kills eggs, cubs and nymphs. The insects are slow, but the drug effect period is long, up to 50~60 days. It is low-toxic to natural insects and other beneficial insects, and is not afraid of alkaline substances. It can be mixed with Bordeaux mixture and stone sulfur mixture. The medicine can control various mites on crops such as cotton, vegetables, fruit trees, tea trees, tobacco, etc., such as citrus leaf mites, apple leaf mites, cotton leaf mites, and hawthorn spider mites. When applied at a lower temperature, it can be sprayed with 1000~2000 times of 5% emulsifiable or wettable powder, and the effect is more than 1 month.
Dadarone: also known as Daxie Ling, Daqijing, acetophenone, oxen, broom, a low-toxic broad-spectrum acaricide, contact-killing, no systemic action, can kill cockroaches , young cubs and nymphs are also effective against licking eggs. The drug has good quick-acting effect and can last for more than 2 months. It is safe for crops, can control red spiders, and kills sucking mouthparts pests such as aphids, spider mites and thrips. Control vegetables leafhoppers, scorpion scorpions, etc. with 750~1500 times of 15% emulsifiable concentrate, and control powder mites, leaf mites, hummers, etc. with 500~1500 times liquid spray. Apple leafhopper, Hawthorn red spider, citrus full claw, citrus rust, etc., spray with 20% wettable powder 2000~4000 times, tea leaves with 15% EC 750~1500 times, control leafhopper, cockroach The horse is sprayed with 500~1000 times liquid (this product can't be mixed with alkaline substances, it should not be used in fish pond, mulberry garden, silkworm field, bee yard).
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