Winter defense against citrus diseases and insect pests
There are many types of citrus diseases and insect pests, and the number of sprayings is large throughout the year, which can easily lead to increased drug resistance, reduced natural enemies, and drastic increase in the cost of pesticides and pesticide residues. From November to the spring after the fruit picking, the citrus trees, pests and diseases all entered dormancy, the tree resistance increased, and the resistance to diseases and insect pests decreased. In this period, the control of pests and diseases can have a multiplier effect. Control object Citrus pests, long-horned beetles, scale insects, canker diseases, and soot disease are the key pests that citrus winters control. At the same time, the focus of prevention and control should also be taken into account according to the occurrence of pests in the local production season. Control methods Pruning the garden combined with winter pruning, cutting out the branches and leaves of diseases and insects, focusing on the eradication of the diseased leaves, dead branches and fruit of the scale insects, horny hornworms, gizidines, cankers and soot; comprehensive eradication of weeds and nearby hosts Plants, remove lichens, mosses, and dry piles thoroughly; extirpate the diseased plants of the yellow dragon, extirpate or saw dead trees or branches damaged by natural calamities, resinous diseases, etc.; remove the wintering swallowtail butterfly, leaf roller moth, codling moth, etc.蛹 刷 刷 刷 刷 刷 刷 刷 刷 刷 刷 刷 刷 蛹 蛹. Pruning, clearing the branches, leaves, and grass must be burned. Soil fertilization is carried out in the fall/winter to the spring before budding, with fertile soil such as dry fire soil, pond mud, river mud, field mud, turf mud, and other fertile soils. It is cultivated around the tree plate and has a thickness of 2-4 cm, 15-20 per mu. Ton. Autumn and winter soil, there is fertilizer, drought and water, improve soil permeability, promote root growth, restore the tree vigor. At the same time, there are also functions such as increasing pest resistance, removing insects, eliminating grass and preventing cold. The deep tumbling of the whole garden through deep gardening can kill some of the larvae and dragonflies in winter, such as flower buds, weevil, or big fruit fly, and accelerate the decay of diseased tissue debris. After the garden is cleared in winter each year, deep-turning is performed with the application of organic fertilizer. Deeply turning 20-30 cm around the crown, cutting off a few old roots, promoting new roots, and loosening the mature soil. For the red and yellow soils with soil acidity, 50-100 kg of lime is applied to the entire park before deep plowing to effectively control the occurrence of physiological fluid injection. Orchard antifreeze uses lime to add clay or cement to seal the trunk cracks, or Tianniu, Giardinus boring. Before the frost, the trunk was wrapped around the grass, the tree tray was used for soil cultivation, and the trunk was brushed white to prevent frost damage and resin disease and other diseases. The use of magnesium sulfate, zinc sulfate and borax in combination with deep-dipping applicator lime for calcium supplementation can effectively prevent and treat citrus deficiency syndromes and improve fruit yield and quality. We, Jiangsu YanFang Medical Technology Co., Ltd, commenced our medical gloves manufacturing in 2020. Currently, we possess a total of 12 high-capacity NBR Glove Dipping Production Lines. Medical Examination Nitrile Gloves,Disposable Nitrile Gloves,Powder Free Nitrile Gloves,Non-sterile Nitrile Gloves Jiangsu Yanfang Medical Technology Co.,Ltd. , https://www.yanfangchina.com
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