How should mulberry orchards be treated with insect control? What do you know?

There are more than 200 kinds of mulberry diseases and insect pests found in China, and the common diseases mainly include mosaic disease, powdery mildew, blight and so on. Common insect pests mainly include mulberry borer, mulberry gall mosquito, mulberry inchworm, mulberry green inchworm, wild silkworm, mulberry borer, leaf insects, mulberry white caterpillars, mulberry yellow caterpillars, snails, etc. There are more than 40 kinds of mulberry pests and diseases that can cause damages, correctly identify and timely prevent and control these pests and diseases, and ensure the yield and quality of mulberry leaves, which is not only related to the mulberry itself, but also related to the healthy development of China's sericulture industry, so we must pay attention to it.

In the hot and dry season, mulberry pests begin to enter a high incidence period. According to the survey, the number of microscopic pests such as mulberry thrips, red spiders, and mulberry planthoppers has increased significantly, and mulberry borers and mulberry inchworms have also occurred in some areas, and mulberry red rust has occurred in mulberry gardens in some mountainous areas. Therefore, it is necessary to control mulberry pests in time.

In order to improve the control effect and control area, and reduce the occurrence of pests and diseases, the following control measures are recommended:

1. At the same time, it is necessary to pay attention to the increase in the number of small pests such as mulberry thrips, red spiders, and mulberry planthoppers in dry mulberry gardens, and observe the occurrence of mulberry borers in the mulberry gardens in front of the house, behind the house and at the foot of the mountain. 80% dichlorvos emulsifiable concentrate 1000 times or 60% dichlorvos horse 1000 times solution were used as controls, with a safe interval of 7 days.

2. For mulberry orchards with relatively large fog in the morning and evening, it is necessary to pay attention to the occurrence of mulberry rust. At the first onset, Mulberry Garden will use 1000 times of 25% rust powder wettable powder for 2-3 sprays, and the spraying interval can be controlled for 20 days, so that the disease can be controlled.

In addition, the mulberry garden should pay attention to science in drought resistance, and the place that can be watered should try to use the evening time to carry out drought-resistant watering, fill the mulberry tree ditch when watering, and put the excess water on another piece of land the next day, which can not only achieve the purpose of saving water but also scientifically fighting drought. If you can't resist drought in a large area, you should try to water the mulberry garden in front of and behind the house in the morning or evening when the temperature is low, so as to ensure the use of leaves in late autumn. At the same time, during the early and late harvest periods, the mulberry orchard can be covered with straw to retain moisture.

Straw mulching can retain soil moisture, increase organic fertilizer, inhibit weeds, and promote mulberry leaf picking.

Precautions

1. During the period of high temperature and drought, agricultural activities such as spraying and watering are prohibited at noon, and mulberry leaves are avoided.

2. Mulberry garden and surrounding areas should pay attention to the use of drugs to prevent and control the occurrence of silkworm pesticide poisoning.

Spray pesticides frequently to prevent insect pests, clean up weeds more to prevent the breeding of pests, in modern planting technology, mulberry trees are generally planted in greenhouses, so the appearance of pests will be significantly reduced.

Mulberry orchards should be treated with insect control in this way: closed garden management, after the end of silkworm raising until the east felling, all mulberry orchards should be sprayed with pesticides 2 to 3 times to close the garden; Winter logging should be carried out in fine weather ten days before and after the winter solstice; Clean up fallen leaves, dead branches, mulberry fists, weeds and weeds around the roadside in the mulberry garden, leaving no room for insects to survive in winter; Pears are whitened in winter, improve soil properties, and reduce the harm of the next year.

To learn the management technology in advance, usually to do a good job of cleaning, to prune off the root of the disease, the mulberry garden can not be sprayed with pesticides, and the management technology must be in place, to choose the right fertilizer, will also carry out all aspects of protection, must do a good job in all aspects of management.

The first is to spray pesticides in time, and should also be watered and fertilized in time, and when choosing insecticides, it is also necessary to choose the right pesticides according to specific pests and diseases.

Appropriate drugs should be selected for management, management techniques in this area should be strengthened, and fertilization should be applied frequently. Pesticides with contraindications are not allowed to appear in mulberry orchards, pests and diseases need to be prevented in advance, and technical management in this area must be mastered, fertilizers should be used reasonably, and regular watering should be carried out.

In addition to the pesticides that are allowed to be used on mulberry trees, there are also the following pesticides that are suitable for use in mulberry gardens.

1) 75% acemethamidophos wettable powder. The active ingredient is acemethamidophos, which is a low-toxicity organophosphorus insecticide. The drug has high systemic and gastric insecticidal activity, and is suitable for the prevention and control of various leaf and bud pests.

When used, it is diluted 3000 times, and the residual poison period of silkworms is 15 days in spring and 8 days in summer and autumn.

2) 50% pine borer EC. The active ingredient is pine borer, which is a moderately toxic organophosphorus insecticide. The drug has a strong stomach toxicity and contact killing effect, diluted 1000 times can be used to control mulberry weevil, residual poison period of 15 days.

The drug has strong penetration, after summer felling or after the end of autumn silkworms, the plots with serious damage to the longhorn beetle, spray 50 times the dilution on the moth site, which can kill some longhorn larvae.

3) 40% dimethoate EC. The active ingredient is dimethoate, which is a low-toxicity organophosphorus insecticide. The drug has systemic absorption, stomach toxicity, contact killing and insecticidal activity, and is suitable for the prevention and control of stinging and sucking mouthparts pests, such as mulberry gall mosquito, mulberry thrips, mulberry whitefly, etc.

When used, it is diluted 500 times, and the residual poison period of silkworms is 5 days.