Scientific name Phyllotreta striolata (Fabricius) Coleoptera, Phylloidea. Alias ​​locusts, vegetables, soil flea and so on. Distribution in addition to Xinjiang, Tibet, Qinghai, widely distributed throughout the country. P.turcmenica is mainly distributed in Inner Mongolia, Xinjiang, and Tibet. The host mainly harms cruciferous vegetables such as rape, radish and cabbage. It can also be used for crops such as millet, barley, wheat, oats, and beans. Injurious characteristics of adults damage young leaves into dense holes, freshly emerged seedlings victims can die into pieces, but also harm the buds, tenderness. The larvae spit on the roots of the larvae and cause severe yellowing of leaves and yellow leaves, and can spread the bacterial soft rot of rape. Control methods (1) rape and non-cruciferous vegetables rotation. (2) Adopting measures such as timely cleaning of the pastoral area and sowing of insect traps to eliminate overwintering adults. (3) Severe areas with 2.5% phoxim powder treatment soil, 3-4kg per 667m2, can reduce the seedling period victimization. (4) When the early adult cotyledon appears, spray 2% acaricidal pine powder. (5) Former crops are non-cruciferous crops, which can be sprayed with a 10m wide acaricidal pine herbicide tape around the field to prevent intrusion of adult insects outside the field into the rape field. (6) Early prevention and early treatment of seedlings in areas where the insects are a major cause of damage, with emphasis on the eradication of adults. Spray 2.0% deltamethrin EC with 3000 times solution, 40% chrysanthemum or chrysanthemum EC with 2000 times, and 80% dichlorvos EC with 1000 times. Spray from the perimeter of the field to the center to prevent adults from fleeing to adjacent plots. (7) The exterminated larvae may be sprayed or watered with 50% phoxim EC 2000 times solution or 90% crystal trichlorfon 1000 times solution. Auto Safety Kit,Car Auto Emergency Safety Kits,Car Emergency Kits,Safety Car Kits In Bag RFX+CARE Manufacturing Co.,Ltd. , https://www.rk-rfxcare.com
Morphological characteristics of the yellow song strips adults body length 1.5-2.4mm, black beetles, coleoptera each has a yellow longitudinal spot, the middle narrow and curved. After the hind leg section is inflated, it is very good to jump. The mature larvae have a body length of about 4mm, a long cylindrical shape, yellowish-white, and each section has insignificant sarcoma with fine hairs. The egg is about 0.3mm long, oval, light yellow, translucent. About 2 mm long, elliptical, milky white, head hidden behind the chest, wing buds and feet up to the fifth abdominal section, the back of the chest has sparse brown bristles. At the end of the abdomen there is a pair of fork-like protrusions with brown ends. The morphological characteristics of Turkmen's flea beak is similar to that of the yellow-trickle jumper. The difference is that the adult heads and chests have a golden green luster. The yellow wings on the eel wing are wide, shallow arches, and the front half of the antennae is light brown. The back section is dark brown and the body length is about 1.8-2.2 mm. The modified elytra wings are all yellow.
Life habits of the yellow-striped jumps in the Heilongjiang occurred in 2 generations, 4-5 generations in North China, Shanghai, Hangzhou 4-6 generations, Nanchang 5-7 generations, Guangzhou 7-8 generations. Adults are lurking in winter in fallen leaves and weeds. When the temperature in Hunchun became above 10°C, the food intake increased significantly when the temperature reached 20°C. Adults jump well and fly at high temperatures. The activities are most abundant before and after noon. With phototaxis, sensitive to black light. Adults have a long lifespan, and the spawning period lasts for more than one month. As a result, generations overlap and irregularities occur. The eggs are scattered in the wet soil gap or fine roots around the plants, with an average of 200 eggs per female. The egg development period at 20°C was 4-9 days. Larvae need to be incubated under conditions of high humidity, so there are more land near the ditch. After the larvae hatched, the roots were scavenged on the surface layer of 3-5cm, and the larval development period was 11-16 days, for a total of 3 years. Old mature larvae are planted in earthen chambers 3-7 cm deep, and the flood season is about 20 days. The spring and autumn seasons are severe throughout the year, and autumn is more important than spring. High-humidity vegetable fields are more important than low-humidity vegetable fields.