How to control peach aphids, thrips and red mites in crops?

1. The environment in which whiteflies, thrips and spider mites occur.

White whitefly: also known as the little white moth, like high temperature environment, not tolerant to low temperature, often cluster on the back of the leaves, like young leaves, so more attached to the new leaves, pupa more attached to the middle and lower leaves, grow in the greenhouse in winter, spread to the open field in spring, is an important pest of crops planted in the greenhouse.

Thrips: like a warm, arid environment, too much humidity can not survive, it occurs all year round, winter is mainly in the greenhouse, the other three seasons occur in the open field, the peak period is in November-December, and March-May is the second peak period.

Spider mites: arid and hot climatic conditions are the peak period of occurrence, and fecundity is strong. In addition to crawling on its own, wind, rain and operation are important ways to spread and spread.

2. Prevention and control methods of whiteflies, thrips and red spiders.

1. Artificial control.

In the overwintering or early spring period, the dead branches, fallen leaves, weeds, and bad fruits in the greenhouse or in the open field are cleaned up in a centralized manner, and manure or deep burial are carried out to eliminate the overwintering adults or larvae.

For whiteflies, whiteflies can also take the way of crop rotation and stubble, vegetable planting selection celery, spinach, garlic seedlings and other whiteflies do not like to eat and low temperature resistant vegetables, can avoid the harm of whiteflies, and can prevent it from spreading to the shed.

2 Medications**.

1) Spraying time.

According to the living habits of whiteflies, it is generally suitable for morning and evening medication, because whiteflies are not easy to fly around at this time, and the effect of medication is good.

Thrips prefer warm, arid environments, and the best time to apply them is in the morning and afternoon when the light is not strong.

Spider mites should be medicated appropriately when the light is strong.

2) Drug selection.

Whiteflies, thrips and red spiders are easy to resist the drug, and the effect of a medicine is not good, it is not a problem of the medicine, it is that they have already produced resistance, and the effect is not very good no matter how much the dosage is increased.

At this time, it is recommended to add a synergist with elimination of resistance when spraying, the general synergist does not have this effect, you can choose an organofluorine synergist, which is safe and not easy to produce pesticide damage and can also solve the problem of resistance, which also solves the trouble of us looking for alternative drugs in turn, reducing the cost of medication and the excessive impact of drug residues on fruit quality.

One is to use mixed agents, or alternate use of agents to prevent the same agent from being used for a long time to produce resistance, the second is to spray the back of the leaf back to spray finely, the nozzle is upward, sprayed from bottom to top, and the third is to the stage of winged aphids, which can hang yellow sticky insect boards in the orchard, which can eliminate some winged aphids and affect their reproduction.

You can use plant-specific insecticides, evenly spray on the leaves of plants, and it is not advisable to water during the medication, otherwise there is no effect, you can spray it several times to consolidate it.

You can go and buy some special pesticides. They work very well. And it works very quickly.