Late-blooming litchi trees should be fertilized.
For litchi trees that have not yet germinated flower buds and produced flower ears after the Beginning of Spring, the roots should be drenched with 600-800 times amino acid active liquid fertilizer solution or 800-1000 times humic acid active liquid fertilizer solution. For more than 5-year-old trees, each tree should be drenched with 80-100 kg and evenly drenched on the topsoil under the crown. At the same time, foliar spraying 2-3 times 800-1000 times plant efficient balanced nutrient solution, or 600-800 times organic humic acid active liquid fertilizer solution, once every 7-10 days, will avoid "flower flushing" and increase the rate of flower formation.
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Key points of litchi management in spring
1. Completely clean the garden. First, cut down the over-dense weeds and bushes around the orchard and clear them out of the orchard; secondly, cut off the over-dense branches and pest branches inside and outside the tree hall and clear them out of the orchard; thirdly, spray 600 times solution of trichlorfon +600 times solution of Yunsheng once throughout the orchard to eliminate overwintering eggs and germs. There is no way to get rid of it.
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Major diseases and insect pests of litchi in March
1. Downy mildew: also called downy mildew blight. It mainly harms fruits and infects flower spikes and tender leaves. The damage to the fruit began from the pedicel, irregular disease spots occurred on the surface of the pericarp, and gradually expanded, resulting in the blackening of the whole fruit, pulp decay, the smell of sour wine, and white frost outside the diseased fruit, causing fruit drop. ...
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