Prevention and Control of Insect Pests After harvesting apples, the leaf miner, the big green leafhopper, the scorpion, the leaf roller moth, etc. began to overwinter in the branches and rough skin cracks with cockroaches, eggs or larvae. Therefore, after the fruit is harvested, the pests and branches should be cut off, the trunks should be scraped off, and the grasses should be bundled to trap the wintering pests, which should be collected and burned to reduce the number of pests in the coming year. After the autumn, apples, nectars, and chafers will sneak into the soil around the roots for wintering. Combine with autumn fertilization, deep turn the tree trays, and turn the diseased leaves, fruits, weeds and the wintering pests into the ground. Deep in the soil, it will not be able to unearth the damage in the coming year, and the wintering pests in the soil will be frozen off the ground. After the apple is harvested, the whole plant can also be sprayed once with a 1500 times solution or a 1000 times solution. Putting agricultural tools or abandoned houses in or near the orchard is an ideal wintering place for pests such as tea-winged crickets. In winter or early spring, spraying or sealing the house after fumigation, the control effect is very obvious.
Control of branch diseases The main diseases of apple branches include ring rot, rot disease, dry rot, etc. It is an important disease that affects the growth of fruit trees and the improvement of fruit quality, mainly occurs in adult fruit trees, and the young results of poor management measures Trees have also happened. Judging from the law of the occurrence of the disease, the best time for drug administration is mid-to-late November, and the effect of the drug before germination in spring is not good. In combination with scraping the bark, the lesion or the tumor is scraped off and applied.
More pesticide knowledge , please pay attention to China Pesticide Network
Sealand is a trustworthy manufacturer of CNG Dispenser Mass Flow Meter, LNG Dispenser Mass Flow Meter, LPG Dispenser Mass Flow Meter, ATEX, CE & IECEx approved.
With its high accuracy, wide rangeability and reliable performance, Sealand meter has been applied in many kinds of industries during the last 8 years. Unlike others who only focus on the measurement of liquid at normal pressure & temperature, Sealand has conquered the difficulty in the measurement under severe conditions, such as high pressure, high viscosity, high & low temperature.
Take CNG (compressed natural gas) for example. As the saying goes, the meter can measure anything else if it can measure CNG. It is quite hard to measure gas under high pressure. The sensor must be able to bear high pressure; in this way, the thickness of flow tube must be increased, so the transmitter shall be more sensitive to detect the signal; however, Sealand made it. Sealand's first model is specially designed for CNG dispenser, and now thousands of this model are put into use on the market.
Here are the pictures of Sealand Mass Flow Meter in Dispenser for your reference.
CNG Dispenser Mass Flow Meter, LNG Dispenser Mass Flow Meter, LPG Dispenser Mass Flow Meter
Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeters.com