Control of pear moth

Recommended products: pear obsessed Little Moth pheromone rubber strip

Pear moth is the main pest of peach and pear trees. It is widely distributed and does serious damage. It not only bores the fruit, but also the young shoots of peach and pear trees, breaking the new shoots and affecting the normal growth of peach and pear trees.
Because it is a boring pest, even if traditional chemical pesticides are used many times a year, the effect is not ideal, and pesticide residues and environmental pollution will also be caused.
In view of this kind of pest, we have developed a new biological control technology - the sex pheromone rubber strip of pear moth. The principle of sex pheromone is to interfere with the recognition of sex pheromone of the pear moth, affect the male's judgment of the direction of the female, so that the male can't find the female, thus blocking the mating of the adult within the effective time, reducing the amount of eggs laid in the field, and completely preventing the damage of larvae.

Product advantages
1. Long duration: Infatuation ® Through the unique polymer slow-release technology, the validity period of pear fruit moth pheromone rubber strip is up to 6 months, and one use covers the whole target fruit production season of that year.
2. Non drug resistance and no blind area: the released sex pheromones fully cover the target area without blind area.
3. Easy to operate: little manpower input, 30-40 mu per person per day.
4. Guarantee production and increase income: the control effect is higher than that of conventional chemical control, recover the loss of orchard, and truly improve the economic income of fruit farmers.
5. Green environmental protection: protect the ecological environment, protect the safety of fruit farmers and improve the safety of fruit.

Usage method.
Infatuation ® It is convenient and fast to use the pheromone rubber strip of the pear moth. Before the adult of the overwintering pear moth emerges in the spring, just aim the heart-shaped opening of the rubber tube at the branch, gently push it up with your hand, and hang the rubber tube on the branch. The hanging height is about 2 meters, or two-thirds of the height of the tree. 40-50 tubes are hung per mu, and they are evenly distributed in the orchard. Once used, the validity period is 6 months.

Tips on insect pests in Pear
Grapholitha molesta (busck), also known as Grapholitha, is a small moth belonging to Lepidoptera and Coleoptera
Host range
Pear, peach, apple, plum, cherry, loquat, hawthorn and other fruit trees.

The pear moth is a worldwide pest, widely distributed in Asia, Europe, America and Australia, and widely distributed in China, all over the south
The occurrence is most common in the northern fruit areas, especially in the peach and pear producing areas in the northeast, North China, East China and northwest, especially in the mixed planting areas of various fruit trees.

Harmful symptoms
In the early stage, the small pear moth harmed the new shoots or root tillers, rootstocks and young shoots of peach, apricot, plum and cherry. One insect can damage several new shoots before damaging the fruit. When eating the young shoots, they are eaten from the base of the petiole, and then down to the xylem. The new shoots at the tips are yellow and drooping, commonly known as "broken shoots". One larva can eat 1-4 new shoots. When the fruit is harmed, it is usually eaten from the calyx or stem depression. The resident hole is a black spot, and then insect feces are discharged from the outside of the resident hole. When the peach is harmed, there is gum on the fruit surface. When the pear is harmed, it is infected by pathogenic bacteria around the resident hole under high humidity, and then it turns black and rots, commonly known as "black plaster". Therefore, small pears not only have a serious impact on Yield and fruit quality, but also harm the growth of young tree crown. The harm of small pear to mixed orchards is greater than that of single variety orchards, the harm of late maturing varieties is greater than that of early maturing varieties, and the harm of the upper part of the crown is greater than that of the lower part. At the same time, peach and pear orchards are seriously damaged.

Occurrence law
The pear borer has 3-7 generations a year, 3-5 generations a year in the north, 6-7 generations a year in the south of the Yangtze River and Sichuan. The main peak period is from early April to mid September. In northern China, the overwintering larvae of pear usually pupate in the first and middle of April, and the overwintering adults peak at the end of April. The first generation of larvae and adults appeared in May, and the second generation of larvae and adults appeared from June to mid July. The last generation of adults mostly appeared in early September, and the number of insects began to decrease in mid September. 1. The occurrence of the second generation is relatively regular, and there is generation overlap after the third generation. The first and second larvae mainly harm the new shoots, and the third and fourth generation larvae mostly harm the fruit in the mixed planting area of peach and pear. When the average temperature reaches 8 ℃ in spring, the larvae can pupate, and when the temperature exceeds 32 ℃, the normal development of the insect is affected. Higher humidity (more than 70%) can promote the development of pear.
Distinguishing features
Adult: body length 4.6-6.0mm, wing span 10.6-15.0mm, all grayish brown, without luster; There are 7-10 groups of white twills on the lateral edge of the forewing, and a white spot in the middle of the forewing.

Eggs: generally 0.5mm long, oval, relatively flat, with central bulge and parallel peripheral edges. The color is yellowish white and turns black and brown before hatching.

Larva: the young larva is white, and the head and anterior chest plate are brown; The old mature larvae are 10-12mm long, with Brown heads, light yellow front and back plates, and light yellow or light pink bodies.

Pupa: 6-7mm long, spindle shaped, yellowish brown, compound eyes black; There were 2 lines of spinous processes on the back of the 3rd to 7th abdominal segments; The pupa is covered with a spindle shaped gray white silk cocoon.
Similar pests: Apple beetle moth
Solution: pear moth pheromone rubber strip
Chen Meixiang, Luo Youqing, Zhao Chunjiang, Tao Wanqiang, Ma wan'e, Wang he Advances in the research of pear moth [J] Northern horticulture, 2009 (8): 144-147
Fan Renjun, Liu Zhongfang, Lu junjiao, Feng Yuntao, Yu Qin, Gao Yue, Zhang Runxiang Research Progress on integrated control of pear borer in China [J] Acta applied Entomologica, 2013, 50 (6): 1509-1513
Zhou Xianhong, Li Lili, Zhang Sicong, Zhang Ansheng, men Xingyuan, Yu Yi Occurrence law of pear moth and pollution-free control technology [J] Shandong Agricultural Science, 2011, 10: 76-81