jujube gall Learn more about jujube gall
-
Control of jujube gall midge, a pest of jujube trees
Jujube gall midge (Contariniasp.) (1) alias and taxonomic status jujube bud maggot, curly leaf maggot, jujube maggot, belonging to Diptera, gall mosquito family. (2) the insect is distributed in all jujube areas in China, and the damage is the most serious in Shandong, Shanxi, Henan, Hebei and Shaanxi.
2020-11-08 Species jujube tree pest jujube gall midge control -
What are the damage characteristics and living habits of jujube gall midge
Jujube gall mosquitoes are commonly known as curly leaf maggots, jujube maggots, which harm the young leaves of jujube trees with larvae, making the injured leaves curl vertically to the leaves. The curly leaves were purplish red in the early stage and brownish green in the later stage. The injured leaves gradually withered and scorched and fell off. Jujube gall midge produces 5-6 generations every year and overwinters as larvae in the shallow soil under the tree. The larvae began to roll leaves in late April, and the damage reached its peak in early May. The first generation of pupae was in early June and emerged as adults in early June. A large number of larvae occurred in Beijing from May to June, and the damage was the most serious. The larvae matured in about 10 days. Late August
2019-01-16 -
Occurrence and control of jujube pest grass paramecium and jujube gall mite
Occurrence and control of jujube pest grass paramecium and jujube gall mite 1. Coccidae jujube pest, also known as tree lice and grass shoe insect. It is widely distributed in China, such as Hebei, Shanxi, Shandong, Shaanxi, Henan and other provinces (regions). ...
2018-06-20 -
Jujube gall mite
Also known as jujube mite, jujube tick, jujube ash leaf. The insect is distributed in Dongzao jujube producing areas in Shandong Province and has become one of the main pests on jujube trees. After the jujube tree was killed, the leaves were curled, the leaves were gray, the fallen flowers and fruits were heavy, and then the leaves fell, resulting in secondary sprouting leaves; there were spots on the fruit surface, resulting in a substantial reduction in yield and a decline in quality. The generation of the insect varies according to its geographical location. About 10 generations a year in Zaozhuang area of Shandong Province, adult mites and nymphs overwintered in jujube scales or jujube branch bark seams, with many generations and rapid reproduction. High mortality rate, strong resistance, rapid spread, score
2019-01-16 -
Control methods of jujube gall midge pests
This insect is commonly known as jujube leaf maggot, which is distributed in various jujube areas all over the country and harms young leaves, buds and young fruits with larvae. The young leaves were tube-shaped curled, purplish red, hard and brittle, and soon blackened and withered. After the bud is killed, it can not open, wither and fall off. The young fruit is not properly nurtured and grows up. When it is the size of a soybean, it turns yellow and falls off.
2018-09-14 -
Control of jujube gall midge
Also known as jujube bud maggot, damage jujube tree buds and young leaves. This insect occurs early, has many generations and has a long damage period. it has a great influence on the development of seedlings, young trees and the fruiting of adult trees. it is one of the main leaf pests of jujube trees. The insect has 5 Mel 7 generations a year in North China, overwintering with mature larvae forming cocoons in the soil, adults Eclosion and oviposition in April next year, and the first ten days of May is the peak period of damage. Control methods: 1. Spray the ground with 1000 times of trichlorfon powder or 25% phoxim, combined with turning the garden to eliminate overwintering.
2019-01-16 -
Control methods of jujube gall midge
Due to the small size of each insect, chemical control is generally applied as follows: (1) ground control: before overwintering superior adults are about to sprout (about mid-April), 2.5% trichlorfon powder is sprayed on the ground under the crown, or 25% phoxim capsule 200mm 300 times solution (covered with fine soil or light hoe soil mixing), or 4% acephate powder Or 4% dibromophosphorus powder can be sprayed on the ground when the nursery ground is in between rows.
2019-01-16 -
Jujube gall midge
Distribution and host this insect belongs to the order Pteroptera, Culicidae. Distributed in Hebei, Shaanxi, Shandong, Shanxi, Henan and other jujube producing areas. The hosts are jujube tree and wild jujube tree. The harm and symptoms are that the larvae suck the juice of jujube or sour jujube buds and leaves and stimulate the mesophyll tissue to make the injured leaves roll longitudinally to the leaf surface. The injured site changed from green to purplish red, hard and brittle, soon blackened and withered, and there were often several heads and even larvae in a roll of leaves. Morphological characteristics 1. The adult female is 1.4mm to 2.0mm long; the compound eye is black, reniform; touching.
2019-01-15 -
Control of Psilocycterus sp. on Jujube Trees
Jujube trees are generally more common in the north, but rare in the south. For friends who grow jujube trees, the most feared thing is the erosion of pests. Once jujube trees are eroded by pests, not only will the yield decrease, but the fruits will be bitten by insects. More serious, they will also
2020-11-08 species jujube rust gall mite of control general in north -
How to treat jujube leaflet disease? What kind of medicine do you use? What caused it?
Dichlorvos, thiazide and thiazide can be sprayed on the plant every 7 days for one month, and the diseased branches of jujube can be cut off in time, which can not only effectively reduce the consumption of soil nutrients, but also prevent bacteria from infecting it.
2020-11-08 Jujube lobule disease how cure use what medicine yes because why -
Jujube management: how to kill insects in autumn and winter?
How do jujube trees kill insects in autumn and winter? Please introduce the methods for killing jujube pests in autumn and winter. Please refer to the following methods: 1. After picking the jujube fruit, dig the soil under the tree in time, generally 10-50cm. This measure can reduce 20% of jujube stinging moth, jujube gall midge, red spider and peach heart borer.
2018-07-18 -
Management techniques of Jujube Orchard in late Autumn and early Winter (2)
The second step is to plough the jujube orchard: implement the jujube forest with intercropping of jujube and grain, and dig deeply the soil between the plants and under the canopy. If the intercropping of jujube and grain is not carried out, the whole garden must be ploughed, especially the soil within the projected area under the canopy must be deeply ploughed. The closer to the trunk, the shallower the ploughing should be, the farther away from the trunk, the deeper the ploughing should be, generally 15 to 30 centimeters is appropriate. In this way, the overwintering pupae and eggs in the soil can be frozen to death. This management measure can reduce the number of jujube inchworm, jujube moth, jujube gall midge, weevil, red spider, beetle and peach heart borer.
2019-01-15 -
The latest course of cultivation techniques and methods of winter jujube
Winter jujube is an excellent variety of late ripening fresh food of thornless jujube, also known as Miaoshangfu, Yanlaihong, apple jujube and so on. In recent years, the market is in short supply and has high economic value. To vigorously develop the production of winter jujube, higher economic, ecological and social benefits can be obtained.
2020-11-10 The latest winter jujube cultivation techniques methods tutorials winter jujube is -
Does it make money to grow winter dates? How to plant winter jujube trees? How to manage it?
Winter jujube (also known as Yanlai red, apple jujube, Bingtang jujube, Huanghua winter jujube, Miao Shangdong jujube, Zhanhua winter jujube) is generally naturally mature and listed in the Gregorian calendar from October to November, so it is named after the cold weather in the north. Does it make money to grow winter dates? How to plant winter jujube trees? How
2020-11-09 Planting winter jujube making money Mo winter how planting management -
Does it make money to grow winter dates? How to plant winter jujube trees? How to manage it?
Winter jujube (also known as Yanlai red, apple jujube, Bingtang jujube, Huanghua winter jujube, Miao Shangdong jujube, Zhanhua winter jujube) is generally naturally mature and listed in the Gregorian calendar from October to November, so it is named after the cold weather in the north. Does it make money to grow winter dates? How to plant winter jujube trees? How to manage it? The prospect of planting winter jujube trees
2019-04-07 -
Planting methods and cultivation techniques of winter jujube
Winter jujube is an excellent variety of late-ripening fresh food of thornless jujube, also known as Miaoshangfu, Yanlaihong, apple jujube and so on. In recent years, the market is in short supply and has high economic value. To vigorously develop the production of winter jujube, higher economic, ecological and social benefits can be obtained.
2018-09-07 -
Cultivation techniques of Yuanling jujube Xin 1 and Xin 2
Yuanling jujube is the main dried variety in Chiping County, Shandong Province. In 2003, we introduced Yuanling jujube No. 1 and Yuanling jujube No. 2 selected from common Yuanling jujube from Shandong Fruit Tree Research Institute for cultivation experiment. 1 the basic situation of the experimental garden is 5.3hm2, flat terrain, sandy loam, deep soil layer, soil pH value of 7.2, organic matter content of 1.11%, alkali-hydrolyzable nitrogen 53mg/kg, available phosphorus 13.9mg/kg, available phosphorus 79mg/kg. Experimental garden
2019-01-16 -
Management Technology of Full-fruiting Period of Long Jujube in Lingwu
Lingwu long jujube full fruit management technology Lingwu long jujube fruit color, meat thick, crisp, sour taste, unique flavor, rich in various minerals and vitamins. Since 2008, Lingwu City has successfully introduced Lingwu jujube in solar greenhouse.
2018-09-22 -
Main management measures of jujube tree after planting
Main management measures of jujube tree after planting
2018-07-24 -
How to manage jujube trees in summer?
How to manage jujube trees in summer? Please give me an introduction because jujube sprouts late, flowering and fruit setting are concentrated in summer. Therefore, if we want to obtain high and stable yield, we must manage jujube scientifically in summer according to its biological characteristics. Management methods can refer to the following: 1, pruning: jujube head growth in mid-June.
2018-09-09