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荔枝花穗受病虫为害后,会造成花穗干枯,花蕾脱落,无法开花,不能座果。必须加强花穗期的病虫防治,保护花穗,才能促进开花结果,提高座果率。为害荔枝花穗的病虫及其防治技术如下:一、荔枝霜疫霉病、炭疽病。花穗受害后,成穗干枯死亡,在即将开花时遇低温阴雨天气时,发生严重,为害猖狂,蔓延迅速,开放的花朵似火烧状,无法座果。要在花穗刚刚萌动时,花穗长10～15厘米左右时和
Litchi spikes affected by pests and diseases, will result in dry spikes, buds fall off, can not flowering, can not seat fruit. We must strengthen the pest control of flower spikes, protect the spikes, in order to promote the flowering results and improve the rate of fruit set. Diseases and pests of litchi spikes and its prevention and treatment techniques are as follows: First, litchi Frost mold disease, anthrax. After the flower spike victims, the death of a mature ear, in the upcoming flowering when encountering cold and rainy weather, serious, damaging, rapid spread, open flowers like fire burning, can not be fruit. Sprout just to sprout in the flower spikes about 10 to 15 cm long and