Planting kumquat usually uses chemical control to prevent diseases and insect pests. They are prone to diseases in the growth process, such as citrus leaf miner and citrus whole claw. These two pests will directly destroy the branches and leaves, make the leaves albino and wither, and directly affect the flowering and fruiting when the situation is serious. The 100 times solution of Bacillus thuringiensis and 0.3 degree stone sulfur mixture can be used to control these two pests respectively. Spraying drugs directly on the leaves can effectively prevent pests. 1、 How to prevent insects in Kumquat 1. Chemical control: the diseases and insect pests prone to occur in the growth of Kumquat include kumquat leaf miner and citrus whole claw. These two diseases directly destroy the branches and leaves, whiten the leaves, affect the germination of new shoots, and seriously affect the growth, flowering and fruiting.
2. The citrus leaf miner can be controlled with 100 times of the biological pesticide Bacillus thuringiensis and sprayed directly on the leaves with obvious effect. It can also be controlled by omethoate 1000 times liquid, which has the same preventive effect. In the occurrence period of Citrus whole paw, 0.3 degrees of sulfur mixture or 40% Omethoate emulsion 1000 times liquid can be used, or 20% mite egg wetting powder 700 times liquid spray instead. It is recommended to spray once every half a month for 3-4 times, with remarkable effect. 2、 How to prune kumquat 1. Pruning purpose: pruning branches and leaves is to maintain a good tree shape. Second, it can reduce shading and provide good ventilation and light transmission conditions.
2. Pruning time: pruning before spring bud germination can minimize the nutrient consumption of ineffective branches.
3. Pruning process: prune dead branches, disease and pest branches and excessively dense and long branches and leaves, and only retain strong and well-growing branches, so as to make the plant type plump and accumulate nutrients. （JinJieZenMeFangChong）