Bemisia tabaci is commonly known as the white moth, which belongs to the family Homoptera, and is one of the main pests produced by equipment vegetables. Bemisia tabaci clustered directly on the opposite side of the leaf to suck the plant juice, affecting the output value and quality of the plant, and even leading to the death of the whole plant; the whitefly of the whitefly, the nymph and the adult stage, the secretion of nymph and adult can induce coal pollution Disease, affecting the photosynthetic effect of plants; B. tabaci can also convey a variety of viral diseases through the leaves of feeding plants.

The cultivation environment of plastic large and medium sheds and solar greenhouses provides excellent ecological conditions for the anniversary of B. tabaci.

Tobacco powder foraging, rapid reproduction, overlapping and overlapping generations, short life cycle, large amount of eggs, can occur more than 10 generations in 1 year; body surface waxy, strong drug resistance, easy to attack on conventional chemical pesticides Resistance; most adults live on the opposite side of the leaves and are highly mobile, easily escaping pesticides.

Agricultural control

Agricultural control mainly strengthens equipment and vegetable cultivation, cultivates insect-free seedlings as the center, and combines the operation of farming, thoroughly removes the stems and leaves of the former crops, removes the old leaves and weeds at the lower part of the plant at any time, and brings out the protection ground. Destroyed outside. In addition, it is necessary to arrange the mouthwash reasonably to prevent the continuous damage and rotation of the Solanaceae, Cucurbitaceae, Leguminosae and Cruciferae, and to prevent the successive damage of B. tabaci.

Physical control

The physical control is mainly to prevent and control Bemisia tabaci by using insect net isolation and yellow board trapping. An insect-proof net can be added to the inside of the film around the plastic large-scale shed or solar greenhouse or at the door to prevent the intrusion of the sputum film when the sputum film is ventilated. Adults of Bemisia tabaci are sensitive to yellow and have strong yellowing properties. A yellow rubber sheet made of special environmentally friendly glue such as petrolatum and butter can be used to trap the whitefly.

Biological control

Biological control, mainly the use of biological pesticides and the use of natural enemy control skills. The biological pesticides for controlling Bemisia tabaci are mainly avermectin preparations and Beauveria bassiana. Using natural enemies to control pests is an ecologically safe pest control skill.

Lily was a useful natural enemies of Bemisia tabaci, which was first released at the beginning of the onset of Bemisia tabaci; according to the different environmental temperature of the equipment, the ratio of initial release to adult pests was adjusted; when the population of Bemisia tabaci was large, it could make up for release; The release time is set at 8:00 am; the distance between the release points in the field is preferably controlled within 8 meters. In addition, predatory natural enemies such as Chinese grasshoppers, tiny flower buds, and East Asian florets also have certain control effects on B. tabaci.

Chemical control

Chemical control is one of the important methods of manipulating B. tabaci. The chemical agents for controlling Bemisia tabaci are mainly 50% clothianidin hydroquinone granules, 17% flupirfenone solution, 10% cyanamide sulphonic oil suspension, 50% flonica sulphide water sputum Granules, 22.4% spirotetraethyl ester suspending agent, 25% thiamethoxam hydrazine granules, and 10% nitenpyram water. In the case of chemical control, pesticides with different effect mechanisms should be rotated according to the recommended concentration of the drug to prevent and delay the onset of drug resistance, and environmentally friendly pesticides should be used together.

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