Take control of vegetable pests

Recent surveys have shown that some pests in vegetable fields have entered the peak period and should be prevented and controlled.

The cabbage caterpillar was the first generation of the second generation cabbage butterfly on May 25 of this year. It was the peak day of the cabbage butterfly on May 26th, and the occurrence of the young larvae (rapae) at the end of May. The amount of eggs and eggs was the second generation last year. About 85%, the degree of occurrence is moderate.

The present diamondback moth (Plutella xylostella) in the field showed overlapping generations in the field, and there were no obvious three generations. At the end of May, the young larvae entered the peak period. The insects and eggs amounted to 72.3% of the three generations last year, and the occurrence degree was moderate to moderate.

At present, both locusts and broiled locusts have risen faster. Among them, there were 85% strains of cucumber in open field, and the amount of insects was similar to that in the same period of last year. The incidence of locusts in open field cabbage and cabbage was significantly higher than that of last year, and the largest amount of pods was found in cabbage vegetables. The average single plant had蚜124, the amount of maggots is above 20%. In the first half of June, aphids will be moderately overweight.

This time, Liriomyza sativae originated earlier this year. It took place in local greenhouses in the afternoon of March. At present, there are different degrees of eggplant vegetables cultivated on the protected land. Eggplants are the most abundant, followed by cucumber. In early June, Liriomyza sativae enters the endangered period and tends to occur more seriously.

At present, cruciferous vegetables such as cabbage, broccoli, cabbage, chicken feather vegetables, radishes, etc., and cucumbers and eggplants must be strengthened to prevent and control the above-mentioned pests. After cruciferous vegetables are harvested, they are ploughed and ploughed in time to prevent the remaining pests from multiplying on the harvested leaves and reduce the number of insect populations in the field. The control of Pieris rapae, Plutella xylostella can be used as a dish with 2.5% spinosad suspension 1000 times, or 4.5% Beta-cypermethrin Emulsion 2000 times, or 16,000 IU/mg of Bacillus thuringiensis WP 800 times. Control locusts, can be used 5% imidacloprid EC 3000 times spray. The control of Liriomyza sativae can be sprayed with 1.8% avermectin EC 1000 times.

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7.Transporting and storing temperature: 0°C

Fresh Carrot

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