Prevention of carambola spread of spider mites is a problem that many people who grow carambola are very concerned about. Starscream is a common pest of carambola, so everyone knows how to control Starscream's spider mites. Knowing how these star fruit spider mites control common sense is critical to carambola production, let's talk about it. How to Carry Out Carambola Starscream Prevention in Life?
1, morphology and habits
The pods were nearly pear-shaped, purple-red, and had four pairs of feet, with knob-like protrusions on the back and long white bristles. Three pairs of juveniles, the body nearly spherical, pale red. Oval flat spherical, red. In the tidal areas, there are more than 20 generations in a year, and generations overlap. The wintering in the old leaves of Chengyu was serious in the spring and autumn. Especially when the overwintering population has a large base number and the spring is warm and droughty, it easily appears that the insects are paralyzed.
2. Control methods
There are many natural enemies for the protection and use of natural enemies Carambola spiders, such as planted slow-billed hawksbill, big red pecker, edible worm, barramundi, grasshopper, etc. In the normal occurrence of red spiders, they can be naturally controlled by natural enemies and Other factors. Therefore, natural enemies should be protected and utilized. One is to plant grass in orchards to create a place where predators feed and eat. Can be used "grass method" to retain benign weeds, or artificial cultivation of alfalfa, white leaf grass, grass and other grass. At the same time, weeding in orchards should be carried out as far as possible. The second is to avoid large-scale use of broad-spectrum insecticides, and many natural enemies are sensitive to broad-spectrum insecticides.
In the clearing of winter gardens in winter, the dead branches and stems and branches on trees were cut off, and the fallen leaves and fruit on the surface were cleared and destroyed. At the same time, a lime sulfur agent of 0.6 Baume was sprayed once to reduce the source of overwintering insects.
Chemical control When the pests in the orchard are severe, and the number of natural enemies is small, it is possible to adopt picking methods or comprehensive prevention and control. The available pharmaceuticals include 20% Beierba 1500x liquid, 73% Kezite 2500x liquid, 20% speed Anthrone 4000 times, 5% Nissoline 2000 times, and 15% Xenon 2000 times. Pay attention to mixed spray and round spray to prevent the occurrence of drug resistance. Under conditional conditions, use mechanical spray and spray evenly. At the same time, sulphur-containing preparations should be avoided during the new shoots, otherwise they will cause new shoots to fall off.
(Source: Gansu Science and Technology News)
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