Gualou is cotton aphid, which belongs to the order Homoptera, Polygonaceae, honeybee, and oilworm. It is a worldwide pest, and the drought is severe in the year of drought. The main damage to cucumber and other Cucurbitaceae, beans, eggplant, spinach, onions, onions and other vegetables. 1. Hazardous features. Adults and nymphs suck sap on the back of the leaves and shoots. After the young leaves and growth points of Guamiao were damaged, the leaves curled and the melon seedlings grew slowly and wilted. Even the plants withered and died earlier. The old leaves suffered damage and fell prematurely in advance, shortening the period of fruiting and reducing the yield. In addition, it can also spread viral diseases. 2. Shape recognition. The dry precursor is 1.7 mm long and 1.1 mm wide. It is wingless, dark green, and compound eye red-brown. Wingless female embryo: body length 15-1:9 mm, yellow-green summer, spring and autumn dark green, abdominal tube length cylindrical, with a pattern. The tail piece is black, with 4-7 bristles. Female embryos with wings: body length 1.2-1.9 mm, yellow or light green. The pronotum is black, with 3-4 pairs of dark spots on the sides. Abdominal tube and tail piece with the same female without wings. If 蚜: If no wings, body length 1.63 mm, summer yellow or yellow-green, spring and autumn blue-gray, compound eye red. If there are wings, the autumn is grayish yellow, the latter half is black, and the others are wingless. 3. Living habits. Every year 20-30 generations. It is also possible to overwinter in the stems of hibiscus, pomegranate, buckthorn and other branches of hibiscus, pomegranate, buckthorn, and so on. In mid-March, when the average temperature on the 5th day was stable above 6°C, the wintering eggs began to hatch, and at the end of April, winged oysters migrated to the open ground. In the late autumn and early winter, winged plovers migrated to the protected area and they spawned for winter mating. The optimal temperature for breeding is 16-22°C. The arid climate is suitable for the occurrence of melons. Generally, the recovery of chemical fertilizers is high, and the nitrogen content is high. The infested plants have more maggots. In the open field planting, it is generally close to the wintering ground of the melons and wintering the host plants, and the melon fields near the protected areas are heavy and the winds are heavy. Intercropping with rapeseed field, from April to May, yellow rapeseed petals can play a role in attracting mussels, or melons nursery close to the rapeseed field, melons move to fly early, cause heavy damage. 4. Prevention and control method Agricultural control: Select pest-resistant varieties with leafy hairs, sow early, and eradicate weeds at Tianbian, Weibian, Tangbian, etc., and eliminate some of the manure source. Timely treatment of old yellow leaves and stubble after harvest, clean the pastoral. Physical control: Use silver foil to avoid blemishes, covering or hanging strips. It can also play a role in preventing viral diseases. Biological control: Protection of natural enemies, such as various spiders, ladybugs, grasshoppers, hoverfly flies, cockroach bees and so on. Smoke: Cucumber planted in protected areas can be smoked by using an agent. Such as killing the smoke agent, 400-500 grams per acre each time, scattered into 4-5 heaps, ignited with dark fire, closed after smoking for 3 hours, also available 22% dichlorvos smoke agent or 10% kill melon smoke agent Fumigation, 300-500 grams per acre, or 400 grams per acre 80% dichlorvos emulsifiable concentrate mixed with sawdust, point dark fire smoked.
Chinese red
date/slice
Chinese red date grow in
various area in China, such as Ningxia (NX), Xinjiang (XJ), Shaanxi (SN),
Shanxi(SX), Henan(HA) and Hebei(HE) etc. Due to our company location, we do
have Chinese red date from Ningxia (NX),
Xinjiang (XJ), Shaanxi (SN) and Shanxi (SX).Chinese red date also known as Jujube is a fruit grow on a small
tree. The fruit is an edible oval drupe.
When immature it is smooth-green, with the consistency and taste of an apple,
maturing red-brown to purplish-black, and eventually wrinkled, looking like a
small date. There is a single hard seed similar to an olive pit. Our company
processed high quality dry dates,
and have various kind of side product such as red dates circle, Red Date Slice and dice, each have different
grades.
Chinese Red Date/Slice
Chinese Red Dateslice,Dried Red Dates,Red Dried Jujube Slice,Red Date Slice
Ningxia Shun Yuan Tang Herbal Biotech Co., Ltd. , http://www.nxshunyuantang.com