Like most pests, this Hemiptera belongs to eating young leaves of fruit trees, which is one of the most troublesome pests in fruit cultivation.
The pear mite generally becomes winter at the deciduous, weed, soil and stone interstices, bark junction, blooms in early spring from February to March, and lays eggs before the sprouting of the pear tree in mid March start. The peak of egg laying reached in early April, and the larval incidence increased from mid to late April. From May to July, it is the end of the danger! Therefore, for fruit farmers who are at a time to prevent and manage pear hibiscus, we have to do 12 points to solve pear rafts! In the following, Xiaobian will guide everyone (I'm as professional as possible) from a professional standpoint to introduce a more reliable PEAR WOOD prevention and management program.
Harm of hibiscus in pears is directly impaired by the sap of young nymphs that suck in pear shoots, leaves and shoots, adults and nymphs focus on new shoots and petioles, and summer and autumn feed on the back of the leaf . At the same time, mucus is secreted and can stick to the two adjacent leaves. Insects hide inside and cause gonorrhea etc. When the leaves dry and fall, new sprouts are damaged, dull and contract .
Pear fruit is caused by the damage caused by honeydew excreted by honeydew, and honeydew caused by honey drainage is seriously contaminated, reducing the value of pear fruit and reducing its quality. Everything that is "patroled" by Pearwood will be black. Some are one point at a time and some are black. Economic benefits will also decrease significantly.
Reproductive ability is very strong, adults are mainly used for egg laying, adults are divided into winter and summer, the color can distinguish adults from brown or dark brown summer adults to green to golden yellow . Most of the spawning is in the hidden part of the pear tree, which is laid on branches and leaves before the pear tree sprouts in March, and the egg is the inner leaf of the young tissue between germination and expansion It is produced in the main vein of the sawtooth and leaves. For pests, do not underestimate the reproductive capacity of pests Pear mites are 3 to 5 generations in a year, 6 to 7 generations in the central and southern regions of the southeast, 8 to 10 generations in the south of the Yangtze River It occurs in It is closely related to rainfall each year, and also has low rainfall and low rainfall, which generally occurs in dry years.