The green tea production mode of Hubei Province covers tea varieties, cultivation, soil, plant protection, processing, marketing, branding and other fields. Adhering to the human-centered rational ecological ethics as the guiding ideology, integrating biotechnology, and striving to revitalize the national tea industry.
The Angen team especially reminds that the harm of green blind bugs in tea gardens is increasing year by year!
According to the continuous investigation and follow-up of the Angen team over the years, the harm in the main producing areas of famous tea is particularly important.
green
blind
Bugs
Green blind bugs
Green blind bugs are also known as leaf cut madness, leaf breakers, broken head madness, its scientific name is called Lygus lucorum Meyer-Dur, alias also called small bed bugs, powdery valley worms, tengu flies, is a hemiptera, a pest of the family Hagmatodidae. This insect has the characteristics of "three more", "three wide", "three strong" and "three heavy".
Three more
First, the color of the insect body changes a lot
Adult green blind bugs are 5 mm long and 2.2 mm wide, green, densely covered with short hairs. The head is triangular, yellow-green, the compound eye is black protruding, there is no single eye, the antennae are 4 segments filamentous, shorter, about two-thirds of the body length, the length of the second segment is equal to the sum of 3 and 4 segments, the color is darker towards the end, 1 section is yellow-green, 4 sections are black-brown. The dorsal plate of the forebreast is dark green, with many small black spots and a wide leading edge. The small shield is triangular and slightly protruding, yellowish-green, with a shallow longitudinal stripe in the center. The forewing diaphragm is translucent dark grey with a residual green. The foot is yellowish green, the end of the intestinal node and the financial node are darker, the end of the hind foot leg node has a brown ring spot, the female hindfoot leg node is shorter than the male, not beyond the end of the abdomen, the tarsal segment is 3 segments, and the end is black. The egg is lmm long, yellow-green, long pocket-shaped, the egg lid is creamy yellow, centrally sunken, protruding at both ends, and no appendages at the edges. Nymphs are 5 years old and similar to adults. Incubated green, compound eyes pink. 2 years old yellow-brown, 3 years old wing buds, 4 years old more than the first abdominal segment, 2, 3, 4 years old antennae and foot ends black brown, after 5 years of age all bright green, densely covered with black fine hairs; antennae are yellowish, the ends are darker. The eyes are gray.
The second is that there are many algebras that occur in a year
Green blind bugs occur in 3-5 generations a year in northern China, 4 generations a year in the Yuncheng area of Shanxi, 5 generations a year in Jingyang in Shaanxi and Anyang in Henan, and as many as 6-7 generations a year in Jiangxi.
Third, there are many "half-siblings" in the "bug clan."
In the "family" of the blyo, in addition to the "big sister" green blind bug, there are also "four bug sisters" (middle black blind bug, alfalfa blind bug, three-point blind bug, pasture blind bug), known as the "five sisters of the bug family".
Sanguang
First, the distribution range is wide
From Heilongjiang (Peide) in the north, to Guangdong and Guangxi in the south, to eastern Gansu, Qinghai (Xining), Sichuan, Yunnan (Wenshan) in the west, to the coastal provinces in the east, almost all over the country in the main cotton-producing areas have the footprint of green blind bugs, which is the dominant bug species that harm cotton in the two major river basins of the Yellow River and the Yangtze River in China.
Second, the scope of the host is wide
There are dozens of hosts of green blind bugs, the most important of which are cotton, mulberry, hemp, beans, corn, potatoes, melons, alfalfa, medicinal plants, flowers (the key host plants are chrysanthemums, a bunch of red), artemisia, cruciferous vegetables and so on.
Third, there are a wide range of wintering routes
Green blind bugs overwinter in the stems of alfalfa, amaranth, artemisia and other plants in the form of eggs north of 32° north latitude, such as Hebei, Shandong, Shaanxi and Henan, or in the pulp of the stem at the top of the alfalfa cut and in the epidermal tissue. In Addition to the above-mentioned places in Shanxi, it is also found that it winters in the stubble mouth of castor, the broken branches of pomegranates, and in the branches of hibiscus, apples, begonias, and peach trees. In the south of 32° north latitude, such as Xiangyang and Jingshan in Hubei, and Nanchang in Jiangxi, eggs and adults are overwintered, of which eggs overwinter in the old skin tissue of the above plant branches, and adults overwinter among weeds, carrots and broad beans.
Top three
First, strong adaptability
In the spring, when the low temperature climate conditions, can only prolong the incubation period of the overwintering eggs, without triggering the vitality of their eggs; even in the summer of high temperatures, only when the high temperature exceeds 45 ° C, adults and nymphs can be "burned"; when the average temperature of march to April is higher than 10 ° C or the average daily temperature of 5 consecutive days reaches 11 ° C and the relative humidity is higher than 60%, the eggs can begin to hatch; even in the year of heavy rainfall (June to August), not only does not affect the occurrence and harm of green blind bugs. On the contrary, it is also conducive to the occurrence of green blind bugs.
Second, the ability to fly is strong
When the green blind bug is starved of food in the countryside, it can fly to food-rich places to forage.
Third, the ability to survive is strong
Adult insect lifespan is as long as 44-50 days, in the Xiangyang area of Hubei Province, green blind bug adult lifespan is up to 90 days, spawning period is as long as 30-40; and there is a phenomenon of three generations in the same house, such as in the Anyang area of Henan, although it is mainly 5 generations of hazards, but 3 generations and 4 generations exist at the same time.
triple
First, the host plant is heavily damaged
Because the characteristics of green blind bugs are the insect-like of adults and nymphs sucking the sap of the five tenders (top tender buds, young leaves, young flowers, young camps, young fruits) and other organs of the plant, it leads to the formation of a large number of broken holes and uneven bug three madness (leaf cutting madness, leaf breaking madness, broken head madness) phenomenon in the affected leaves, which is a typical symptom of the green blind bug pest plants that distinguish it from other pests.
Second, crop yield losses are heavy
In areas where green blind bugs occur in severe years, the rate of cotton bud shedding can reach more than 600, and the yield loss can reach more than 40%. In the tea area, the harm is mainly the young buds and leaves of spring tea, which is the best season for the production of famous tea, and the loss is even more serious.
Third, economic losses are heavy
The direct economic losses caused by the severe reduction in yields caused by the affected crops, coupled with the serious induction of product quality by the affected crops, have led to a significant decline in the value of commodities. In the tea tree, the main concentration is to harm the spring tea bud leaves, and the famous tea has suffered heavy losses.
Prevention and control measures
1. Combined with winter garden clearance and fertilizer collection, completely remove the "three residues" (stubble, stumps, and residual grass), and concentrate the "three residues" to kill insects, so as to reduce the base of insect sources.
2. Combined with agricultural prevention and control measures, effectively clear the "three ditches" (box ditch, waist ditch, fence ditch), so that water can be discharged when it rains, and there is no water in the countryside after rain, so as to create an ecological environment that is conducive to crop growth and development, and is not conducive to the occurrence of pests.
3, do a good job of green prevention and control measures, tea garden autumn and winter to do a good job of stone sulfur compound garden closure, the initial use of Ancha raw Chinese medicine extract 300 times + 0.6% matrine 500 times spray prevention and control.
4. Maintain the ecology of tea gardens, and actively protect the "three insects" (parasitic bees, grasshoppers, spiders) to give full play to the control role of natural predators.
The Angen team is fully committed to promoting the green production mode of tea. More than 20 agricultural experts in various fields provide mature soil remediation integrated solutions, ecological remediation integrated solutions, pesticide residue solutions and ecological agriculture socialization services. Enquiries 027-87863688;4000-8583-00.