The readers of Liu Dapeng in Xixia County, and Mr. Hong in Sanmenxia City dialed the hotline 110 hotline of the newspaper to inquire about how to prevent and treat diseases and pests in the Kiwifruit Garden in the winter. This reporter interviewed experts from the expert advisory group of this newspaper on this issue. Experts pointed out that prevention and treatment of diseases and pests in the Kiwifruit Garden in the winter will have a multiplier effect in promoting the transformation of tree vigor, the control of pests and diseases in spring and summer, and the robust growth of kiwifruit trees. At present, the main diseases of kiwifruit are ulcer disease, bacterial flower rot, root knot nematode disease, root rot, leaf blight, and black spot disease. Insect pests mainly include gold tortoise shells, spotted wax moths, stink bugs, small salamanders, red spiders, peach aphids, leafhoppers, and pods. The prevention and control methods are as follows: 1. After picking kiwi fruit, the tree body needs to rest and fertilize to enhance its resistance to overwintering. After falling leaves should be combined with deep pruning and pruning, remove litter, weeds and spraying agents to achieve effective control. Second, the pathogens that damage kiwifruit in winter are in dormancy, and they are parasitic in diseased branches, fallen leaves and rotten fruit. Combined with winter cutting, the diseased branches, larvae, fallen leaves, and fruit drop in the garden can be removed, and deep burial or incineration can be carried out to reduce the source of leaching. Third, control root knot nematodes. Combined with deep plowing before the winter, the top soil of the diseased plants can be excavated by 5 to 15 cm to reduce the source of the disease and reduce the damage. Fourth, control root rot. Root rot disease is mainly caused by wound infection caused by underground pests, earthworms and other hazards. Therefore, soil pharmacy treatment can be combined with deep plowing to eliminate its underground larvae and pupae. The use of 3% carbofuran per acre for soil treatment 3 to 5 kg, reducing the base number of pests overwinter, greatly reduce the damage in the coming year. Fifth, the kiwifruit garden with severe ulcer disease is based on the combination of the winter cutting garden, and is generally sprayed with 1 to 2 times of Baumide liquor with 0.3-0.5 Baume degree and Bordeaux mixture for comprehensive prevention and treatment. Six, control scale insects. Scale insects mostly live on trees trunks and shoots. In the winter, rags, grass handles, bamboo brushes and other tools can be used to wipe off the dense winter insect sources to reduce insect damage. The twigs on the shoots can be removed in conjunction with winter shears. Seven, leafhoppers, aphid pests often in the weeds and dead leaves spawn overwintering or adult overwintering. It can combine with clear gardens, eradicate weeds and concentrate deep or incineration to eliminate overwintering adults and eggs.
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