How to control Spodoptera exigua? How to cure noctuidae?

1.Control the amount of watering, do not overwater, and actively take drainage measures when encountering rainy weather, combined with spring watering of wheat fields 2Do a good job in pesticide prevention and control, spray with phosphine, emamectin benzoate, cyfluthrin or chlorantraniliprole, or use chlorpyrifos as poison bait or mix poisonous soil to sprinkle it in the field3

Sexual attractants, lamp traps, etc. can also be used for booby-trapping4It is necessary to strengthen daily management, control the amount of irrigation, control the amount of fertilizer, appropriately reduce soil moisture, and reduce the occurrence of pests and diseases.

Sweet and sour liquid can be used to trap and kill. A small amount of pesticide can be mixed with it. Such as trichlorfon. You can choose Spodoptera exigua, karyotype polyhedrosis virus particles, cyanide mite, chlorantraniliprole or emamectin benzoate, etc. Attention should be paid to the rational alternate use of pesticides.

Adults are trapped, such as sexual attractants and insecticidal lamps. According to the characteristics of larvae clustering on the back of leaves, remove the leaves with hatched eggs, remove egg masses and nests in time, and reduce the number of pests in the field.

Summary. Dear, I'm honored to have your question The information that the teacher found for you here is: How to cure noctuidae?

How to treat Spodoptera exigua is: prevention and control drugs: spray 5% fipronil emulsifiable concentrate 2000 times, 10% fenfenapyr suspension 2000 times, 15% indoxacarb suspension 3500-4500 times, or 40% fenvalerate emulsifiable concentrate 2000 times ecological regulation and protection and utilization of natural enemies.

In areas where conditions permit, intercropping with non-gramineous crops can be used to protect the parasitic and predatory natural enemies in the natural environment of farmland, and to give full play to the natural control advantages of biodiversity to trap and kill adult insects. Combined with the control of other vegetable insects, black light or sweet and sour pots can be used to trap and kill adult insects.

Dear, it's an honor to ask you about the problem of Xiangzhen The information that the teacher found for you here is: How to cure noctuidae? How to cure noctuidae for:

Prevention and control drugs: spray 2000 times of 5% flufenoxyl emulsifiable concentrate, 2000 times of 10% chlorfenapyr suspension, 3500-4500 times of 15% indoxacarb suspension, or 2000 times of 40% fenvalerate emulsifiable concentrate for ecological regulation and protection and utilization of natural enemies. In areas where conditions permit, intercropping with non-gramineous crops can be used to protect the parasitic and predatory natural enemies in the natural environment of farmland, and to give full play to the natural control and lurking advantages of biodiversity to trap and kill adult insects.

Combined with the control of other vegetable insects, black light or sweet and sour pots can be used to trap and kill adult insects.

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After harvesting, the weeds in the hemp field should be eradicated in time, the dead branches and fallen leaves should be removed, and the soil can be loosened by cultivating the soil, which can eliminate part of the pupae; Combined with agricultural activities, the eggs and leaves of the larvae are removed, and the leaves are burned or buried deeply.

Pharmaceutical prevention and control. Seize the larval swarm damage period and spray powder in the early morning before the dew dries. It can be sprayed with trichlorfon powder or parathion (1605) powder and dimethoate powder, kilograms per mu.

Spodoptera exigua pests are mostly clustered on the dorsal leaves at the 1 3rd instar, and the food amount is small, and the resistance is poor, which is the best time for pesticide control. Therefore, it should be selected to carry out control in time when the insect age is small, and apply the pesticide before 8 am or after 6 pm on a sunny day. In the peak period of the occurrence of noctuidae insect pests, the method of manual picking of egg masses and removal of infested onion pipes can be adopted in the green onion field to reduce the population base of pests and reduce the damage.

Control agent: 20% Gaoming emulsifiable concentrate (noctuidae type) 800 1200 times solution; Aolu No. 1 emulsifiable concentrate 800 1000 times; 1 sachet (15g) of 30% Avi Kill Single WP to 1 sprayer water; 20% good 1000 times emulsifiable concentrate; Jiqi Nongnianfeng EC 1 bag (10ml) mixed with 1 sprayer water; 10% emulsifiable concentrate 500 750 times liquid. If it is found that the noctuidae insect pests have entered the advanced age of insects, it is recommended to add some fast-acting pyrethroid insecticides to improve the control effect.

1.Remove wild plants.

Dig out wild larval host plants such as wood defense, wood tong, tongcao, and ten merits. Or spray 90% trichlorfon and other inactivated larvae during the larval occurrence period.

2.Booby trap or evacuation.

During the fruit ripening season, hang a black light to trap or use a 40-watt yellow light to repel the fruit sucking moth adults. Or avoid using citronella oil, hang citronella oil paper on the fruit tree every night, and the oil amount of 10 ml is adsorbed on the absorbent 5 cm 6 cm grass paper, hang out every night, hang 8 10 pieces per tree. Take it back every morning and put it in a plastic bag to seal it for later use.

Put some grass in the orchard at night, sprinkle some wood chips and sulfur powder, and light it in the evening to have a certain repellent effect.

3.Fruit bagging.

When the persimmon fruit is about to ripen, the fruit is covered with paper bags and plastic bags to have a certain control effect.

(1) Combined with field management, remove egg masses and insect leaves in time and eliminate them in a centralized manner.

2) The insect body wall is thick, the excretion effect is fast, and the drug resistance is strong, so we must master the early prevention and control, and spray the pesticide before the first egg larvae are harmed. During the occurrence period, the field should be inspected every 3 to 5 days, and the prevention and control should be focused if a little piece is found. Spraying should be done in the evening.

Medicinal use: 1000 times of the use of Stuck Dead, Suppression of Taibao, Nongdile, and Quick Killing, or 1500 times of Wanling, Baode, and Elimination, timely prevention and control, and the elimination of pests before the 3rd instar. For larvae over three instars, spray with 20% rice full 1000 1500 times liquid, and spray once every 7 10 days.

Miman is a cost-effective agent for Spodoptera exigua, but the drug action speed is slow, should be applied 2 3 days earlier than the conventional agent, although the pest has not died for the time being after spraying, but it is no longer harmful, do not have to worry about the control effect and re-spray. It is best to eliminate the exhaustion, the card is dead, and the rice is full of defense. You can choose to use 1000 times of 50% cypermethrin EC plus 1000 times of 50% phoxanthion EC, or 1000 times of 80% dichlorvos EC spray, and the control effect is more than 85%.

It can also be sprayed with 5% anti-Taibao EC, 5% Ka Ke EC, or 75% Nongdile EC 500 times liquid or 5% Spodoptera emulsifiable concentrate 1000 times liquid spray, and the control effect is more than 90% in 5 days.