Occurrence law and control method of peach tumor
How to prevent and cure peach tumor? Peach mites are a kind of pests that seriously affect the growth and development of peach trees. They are distributed and occur in the north and south of China. Once the leaves of the peach tree are exposed to such damage, the edges of the leaves will curl longitudinally toward the back. Let's take a look at the occurrence and prevention techniques of peach tumors.
First, the morphological characteristics
The adult mites have a wingless oyster and a winged oyster. The wingless viviparous female body is 2.0-2.1 mm long, and the winged fetal carcass is 1.8 mm long.
Second, the law of occurrence
There are more than 10 generations of peach tumors in 1 year, with overlapping generations. The eggs are overwintered in the branches and buds of fruit trees such as peaches and cherries. The next year the host germinated and became a dry mother.
The cluster is feeding on the back of the leaf, which is harmful. The large number of adults and nymphs are hidden in the insects, which makes it difficult to control. May-July is the breeding and abrupt period of the peach aphid.
At this time, the winged females were moved to the compositae plants such as wormwood, and in the late autumn, they moved back to the peaches, cherries and other fruit trees in October, producing sexual cockroaches, and the wintering of the mating.
The number of natural enemies has a greater impact on the occurrence of peach mites. Natural predators mainly include a variety of predatory and parasitic natural enemies such as the wormed ladybug, the seven-spotted ladybug, the Chinese giant grasshopper, the big grasshopper, the small flower bud, the scorpion fly, the scorpion bee, and the small bee.
Third, prevention and treatment methods
Agricultural control
In the winter, the eggs are pruned, and in the early spring, the heavily damaged insects should be pruned. After the migration of the peaches in the summer, the host plants of the chrysanthemums around the peach garden should be removed, and the insects, eggs and weeds should be concentrated. Burned down, reducing insects and egg sources.
2. Protect natural enemies
There are many natural enemies of Peach Tussock. In the breeding season of natural enemies, it is necessary to use chemical pesticides scientifically. It is not advisable to use contact-type broad-spectrum insecticides.
3. Chemical control
It can be controlled by using 50% acetamiprid water dispersible granule 3000 times solution and 10% imidacloprid wettable powder 1000 times solution.
The above is the main points of prevention and control of peach tumors. The farmers who have the needs can collect and reserve, and welcome everyone to provide more comprehensive technical knowledge.
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