The main symptoms of diseases and insect pests of spring feather include yellow leaves, withered leaves, zoom leaves, mottling leaves, etc. in addition, there are also obvious traces of insect bites. In a word, the appearance and symptoms of diseases and insect pests of spring feather are obvious and easy to detect, but prevention is more important than treatment. Try not to wait for symptoms to appear before treatment. Therefore, it is necessary to understand the common diseases and insect pests of spring feather. Type and prevention methods, mainly prevention, supplemented by treatment
Generally speaking, plant diseases and insect pests are divided into diseases and insect pests.
The common diseases of spring feather include leaf spot, anthrax, etc. comparatively speaking, leaf spot is more common than anthrax. The main manifestations of this disease are as follows: there are nearly round leaf spots, brown to reddish brown, dark brown edge, yellow halo on the periphery, reddish brown ring on the spot surface, needle size spots on the spot.
The common insect pests of spring feather include red spider, scale insect, etc. relatively speaking, scale insect is more common than red spider, and the reason of red spider's appearance is probably low air humidity, and the reason of scale insect's appearance is probably poor ventilation.
For the diseases of spring feather leaf spot and anthrax, the fungicides such as dolindra, thiophanate methyl and zincic Daisen can be used to control them. Leaf spot is more common than anthrax. Specifically, the leaf spot disease needs to be controlled by spraying with 50% dolindra 1000 times.
It can spray special insecticides to prevent and control the insect damage of red spider and scale insect. Specifically, the scale insects need to be controlled by spraying 50% Omethoate emulsifiable concentrate 1000 times. In addition, to prevent spiders, we need to increase the air humidity, and the scale insects can be prevented by strengthening the ventilation.
In addition, if the leaves appear yellow, dry and scorched, they need to be pruned in time.
