Chongqing "Terson" Coptis", Department of Chongqing Shizhu Tujia Autonomous County specialty, China National Geographic Indications (native geographical products). Produced in Shizhu County Huangshui National Forest Park, also known as "Coptis". Ranunculaceae Coptis Coptis chinensis Franch dry rhizomes, medicinal products "taste even", Department of commonly used precious Chinese medicine, Shizhu County is the original production of Coptis, Coptis town, the production of Because of good quality, was identified as "Sinopharm" "Authentic Coptis".
Rhizoma Coptis,Rhizoma Coptidis Extract,Coptis Chinensis Extract,Natural Coptis Extract Chongqing Taisun Pharmaceutical Co., Ltd. , http://www.taisuncoptis.com
The main pests and symptoms that cause damage are currently caused mainly on the jujube, which is the “two diseases and one wormâ€, namely, the rust of the jujube, the fruit shrinking disease, and the rusting of the jujube leaf, and the others that are seriously infested are the juvenile mosquitoes. Jujube rust only damages the leaves and spreads from the canopy to the bottom. The early stage of disease usually occurs in the middle or late June. It initially develops irregular green dots on the back of the leaves, and then gradually turns into brown-colored bulges, namely the urediaspores, and occurs frequently. On both sides of the main vein, the tip of the blade, and the base, the late epidermis ruptured and dispersed yellow powdery uredia spores, which spread through wind and rain. At this time, the leaves were rust-like mosaic leaves, causing a large number of fallen leaves, and all serious fall from August to September. The general symptoms of fruit shrinking were from late July to early August. The early fruit of the jujube fruit showed pale brown spots on the fruit surface. The fruit surface was dark red and dull in the later period. The pulp changed from pale green to reddish yellow, and the fruits lost a lot. Water causes a longitudinal shrinkage on one side that causes the fruit to fall off. Jujube leaf rust wall larvae generally begin to damage after jujube sprouting and spreading leaves, and injure during the high-temperature and dry period from July to August. The main damage is leaves, flowers, and young fruits. The leaves are thickened and brittle after injury and curled along leaf veins to leaf surface. Leaf margins are scorched; plants with severe damage often cause a large number of fallen leaves, fruit drop, and young shoots of jujube heads to die off. Jujube Mosquito mainly damage young shoots, often causing the young leaves to curl, and the larvae feed on them. After the leaves are damaged, the curly parts turn from green to red, and the leaves thicken and become brittle. Red larvae) often become brownish later.
Jujube is one of the most important fruit tree species in the city. The existing area is nearly 20,000 mu. The processed product, Nanzao, is a traditional processed fruit in the city and is popular in markets such as Hong Kong and Macao, enjoying a good reputation at home and abroad. However, due to the serious pests and diseases in our city in recent years. As a result, the quality and output of green jujube declined sharply, and the decline in the proportion of high-quality fruit capable of processing Nanzao dates was even more pronounced. The low cultivation efficiency led to the loss of farmer households and further aggravated the occurrence of pests and diseases. This vicious cycle has caused the city’s jujube industry to suffer Very adverse effect. To this end, comprehensive prevention and control must be strengthened: