Identification and control of four leaf miners in vegetables

1. Hazard 1.1 The adult larvae and larvae can be harmed. The female adult flies, stabbing the plant leaves, feeding and spawning, larvae sneak into the leaves and petiole hazards, producing irregular serpentine white worms, chlorophyll is destroyed, affecting photosynthesis, causing damage

Points to note when using compound fertilizer

Compound fertilizer has the advantages of high nutrient content, less auxiliary components and good physical properties. It plays an important role in balanced fertilization, improving fertilizer utilization rate and promoting high yield and stable yield of crops. But it also has some shor

Wenzhou developed a series of CNC machine tools

Recently, Wenzhou Hanjiang Hydraulic Machinery Co., Ltd. successfully developed a series of CNC machine tools, which laid a good foundation for Wenzhou equipment manufacturing industry to participate in the international stage competition, and completed a leap from traditional

Nandu Futures: Aluminium Fine-tuning, the National Day Shanghai Allumination

Yesterday, LME aluminum opened at 1863 US dollars, the intraday high of 1865.5 US dollars, closing at 1855.5 US dollars, volume and open interest have increased, inventories increased 700 hands, reached 509,175 hands. The drop in crude oil and the increase in inventory have had a slight im

Controlling apple rot with salt water

Apple rot disease is the most common disease in fruit tree cultivation. Once a diseased plant is found, it must be prevented in time. Otherwise, it will spread to the whole garden quickly, which will not only affect the normal growth of apple trees, but also seriously affect the yield and

Why is the use of pesticides not ideal?

With the increase of temperature and the increase of rainfall, various diseases and insect pests on vegetables have also occurred. Some vegetable farmers have not used pesticides many times, and the effect is not satisfactory. Not only does it waste a lot of financial and human resources,

Pesticide mixed calculation method

For the mixed use of pesticides, the dosage of each agent must be calculated, and the pairing can be accurately weighed in order to achieve cost-effective application.

First, the pesticides mixed with different targets can be calculated separately according to the following formul