Winter vegetable pest control

Liriomyza

1. Prevention strategy and goals

Adhere to the plant protection policy of “prevention first, comprehensive prevention”, make full use of the combination of agriculture, physics and chemical control to reduce the amount of pesticides used and the number of uses, and effectively control the harm of Liriomyza.

2. Main control measures

(1) Agricultural control: clean the pastoral, timely remove weeds, sick plants, and reduce the source of insects.

(2) Physical control: The yellow card traps adult larvae and reduces the density of insects in the field. In the open field or greenhouse cultivation, the yellow card can be inserted twice in the peak period of the period of 4 to 6 months and August-October, and 25 to 30 pieces of yellow cards can be inserted in the size of 50 cm × 50 cm per acre, which can reduce the field to a certain extent. The density of pests controls the degree of damage to the leaf miner. In the greenhouse facilities, in addition to using the yellow card to induce the killing, it is also possible to control the damage of the spotted fly by using a fumigation device such as a fumigation device.

(3) Chemical control: use 2000 to 2500 times of the larvae, 2000 to 3000 times of the avermectin, and 1500 to 2000 times of the venom of the silkworm.

powdery mildew

1. Prevention strategy and goals

Adhere to the plant protection policy of “prevention first, comprehensive prevention”, strengthen the monitoring of pests and diseases, and make full use of the combination of agriculture, physics and chemical control to reduce the harm of powdery mildew.

2. Main control measures

(1) Agricultural control: use resistant varieties. Reasonable close planting, timely removal of diseased leaves and weeds in the field.

(2) Physical control: The greenhouse uses fumigation device to fume sulfur powder or use chlorothalonil to control.

(3) Chemical control: In the early stage of the disease, 1500 times solution of powder rust, 800-1000 times of sulphur suspension, 2000-3000 times of Fuxing, 20 to 3000 times of enemy oil, 13 morpholine (can not be used) can be used 3000~5000 times The liquid, the FT-1500-2000 times liquid and other chemicals are used for prevention and treatment.

Black rot

1. Prevention strategy and goals

Adhere to the plant protection policy of “prevention first, comprehensive prevention”, make full use of the combination of agriculture and chemical control to reduce the use of pesticides and reduce the risk of black rot.

2. Main control measures

(1) Agricultural control: carbendazim, Fumei double seed dressing. Rational irrigation, timely drainage after rain.

(2) Chemical control: In the early stage of the disease, the use of agricultural streptomycin 1500-2000 times liquid, Kuailing 1000-1500 times liquid and other agents for prevention and treatment.

Cabbage

1. Prevention strategy and goals

Adhere to the plant protection policy of “prevention first, comprehensive prevention”, make full use of the combination of agriculture, physics and chemical control to reduce the amount of pesticides used and the number of uses, and control the harm of cabbage caterpillar and diamondback moth. Strengthen monitoring, timely grasp the peak period of the period, and guide large-scale prevention and control.

2. Main control measures

(1) Agricultural control: strengthen field management, timely remove diseased plants and weeds in the field to reduce the source of insects.

(2) Physical control: For the larvae of the larvae of the genus Noctuidae, it can be spliced ​​with insecticides or placed attractants to trap adult worms, reduce the number of adults in the field, and control the damage of Plutella xylostella.

(3) Chemical control: use biological pesticides such as BT insecticide 2000~2500 times liquid, green wave 800~1000 times liquid, vegetable hi 2000~3000 times liquid, avermectin agent 2000~3000 times liquid to cabbage caterpillar Plutella xylostella also has certain control effects.

Whitefly

1. Prevention strategy and goals

Adhere to the plant protection policy of “prevention first, comprehensive prevention”, and make full use of the combination of agriculture, physics and chemical control to control the harm of whitefly.

2. Main control measures

(1) Agricultural control: remove weeds in the field, remove old leaves with whitefly, and reduce the source of insects.

(2) Physical control: yellow card or yellow armyworm paper in the field to trap adult insects. In the greenhouse, fumigation devices such as dichlorvos are used to control the harm of whitefly.

(3) Chemical control: When the whitefly activity in the morning or evening is low, timely use Akthai 7500 ~ 10000 times liquid, imipenem 1500 ~ 2000 times liquid, pyrethroid agent 1000 ~ 1500 times liquid for prevention and treatment.

aphid

1. Prevention strategy and goals

Adhere to the plant protection policy of “prevention first, comprehensive prevention”, and make full use of the combination of agriculture, physics and chemical control to control the damage of mites.

2. Main control measures

(1) Agricultural control: timely clearing the weeds in the field and reducing the source of insects.

(2) Physical control: 25 to 30 pieces of yellow cards are inserted per acre according to the specifications of 50 cm × 50 cm, and the yellow card is inserted into the yellow plate to control the aphids. In the greenhouse, a fumigation device can also be used to fumigate dichlorvos and other agents to control the mites.

(3) Chemical control: use Aketai 7500 ~ 10000 times liquid, imipenem 1500 ~ 2000 times liquid and other drugs, pyrethroid drugs 1000 ~ 1500 times liquid have certain control effect on aphids, but pay attention to safe interval mining Received.

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