Control citrus bud buds and increase citrus flowering rate
Citrus buds do not occur for a long time, but the damage caused by damage cannot be underestimated. The occurrence of this worm infestation was generally one generation in one year and a few in two generations. The last larvae were overwintering in the soil. In March, the overwintering larvae migrated to the surface and they re-doed the pupa. The eclosion occurred from March to April and it was most abundant after the rain. Buds exposed when a large number of adult emergence and spawning in the flower buds, hatching flower buds, styles and ovary after feeding buds caused by poor development of buds caused by falling flowers. From March to April, more rainy weather favors the occurrence of adult larvae, and it is beneficial for the larvae to enter the soil as soon as the larvae are in a period of rain. There are two methods for physical control and chemical control. The first method is to perform shallow ploughing on shallow soil layers near the canopy from the end of February to the beginning of March each year, which will help reduce pests. The second is to use adult mulch to cover the soil before adult emergence and to prevent emergence of adult eclosion and egg laying on the tree, which has better control effect. The chemical control method is controlled by spraying pesticides. The ground application is an effective method to prevent and control citrus buds. The ground application should be combined with the bud application, with the ground application as the main method and the bud application as the supplement. Flower bud emergence adult emergence time and (buds like green beans) or just white buds, rapid emergence of adult feathers (depending on the rain period) spraying, should sooner rather than later. If the adult has already laid eggs on the tree before applying it to the ground, it will often lose its control effect. Adult trees should be sprayed on the ground in the whole park. Sporadic trees and young trees are only sprayed within about 67 cm outside the crown. Generally sprayed with a powder of contact pesticides, such as the use of 2.5% trichlorfon powder 1.5 kg mixed soil finely sprayed 30 to 35 kg, can also be used to kill 2000 to 2500 times 2.5% enemy spraying the ground, every 5 ~ 7 days, spray usually 1 to 2 times.
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