Mulberry pest control technology

1. Green plant brand 60% enemy horse emulsifiable concentrate (formerly known as double-effect phosphorus), registered by the Ministry of Agriculture, is a special pesticide for mulberry trees, with short residual period, strong contact and economic security. When using, each backpack sprayer water (16 liters) plus 15 ml (medicine dosage is 400-600 mg / kg), in the 10 days before the picking leaves, the effect of controlling larvae, wild crickets and other lepidopteran larvae is also good.

2, Green Plant 40% Duowei (Sangbao) EC, is the only registered in the mulberry tree by the Ministry of Agriculture, and has become the main special pesticide in the sericulture areas such as Jiangsu and Zhejiang. The variety is packaged in injections, 4 ml each. When used, each sprayer with a backpack sprayer water (16 liters) is used for 8 days (summer) to 15 days (spring and autumn) before harvesting, which can effectively control lepidopteran larvae such as mulberry and wild pheasant. Worried. When using, do not arbitrarily increase the dose (medicine dosage is 50-100 mg / kg), mulberry leaves are safe for silkworms.

Mulberry mites have not been registered with special sericulture acaricides at home and abroad. In order to control mulberry mites, silkworm farmers in Haining and Huzhou choose 73% acetylene emulsifiable concentrate. The variety has been registered on citrus and vegetables, and the effect of controlling mites is very good, but it is necessary to master the dosage. Each backpack sprayer water (16 liters) plus 4 ml is sprayed 15 days before picking.

The requirements for sericulture pesticides are very high, and silkworm farmers should consult the local plant protection department. There are few pesticides registered on mulberry trees at home and abroad, and only a few varieties have different quality. They must pay more attention when using them:

1. Farmers choose sericulture pesticides (such as 73% acetylene emulsifiable concentrate), and must choose the products produced by large enterprises, and start experimenting with low concentration, and obtain the effect and use it without poisoning the silkworm.

2, must choose the registered mulberry special pesticides, and recognize the brand, the name of the plant, beware of some companies in the production of mixed with other pesticides and pesticides of low purity caused by silkworm poisoning.

3, silkworms are very sensitive to pesticides. When using pesticides, the dosage should be controlled to avoid prolonging the mulberry leaves in the residual period and feeding silkworms to cause silkworm poisoning. At the same time, do not transfer the pesticides to other mulberry fields that are collecting mulberry leaves.

4, sericulture sprayer should be as special as possible, because the sprayer used other pesticides (such as chrysanthemum) will be very toxic to silkworms. Be sure to wash the previously used sprayer thoroughly before using it.