Timely control of fruit tree aphids

Apple Spiraea, Pyrus bicorni, Myzus persicae and Peachflies are the main aphids in the northern fruit trees, and they occur and harm to varying degrees every year. Many of the fruit growers are not allowed to be lawful in their prevention and control, and often spend a lot of energy. Many times they spray pesticides, and they cannot effectively control their damage and cause great losses. In many years of practice, the author summed up effective preventive measures.

One, after Xie Hua has to take over

Fruit trees should be sprayed immediately when they are obliged to spend 80%-90%. The agent can be used 1.8% avermectin wettable powder 3000 times liquid + 10% imidacloprid wettable powder 2000 times liquid, can cure red spider, leaf roller moth, leaf leaf moth and other pests, plus fungicides, can also cure a variety of diseases.

Second, in May to strengthen control

In May, the temperature rises significantly, the weather is generally dry, and the fruit trees grow rapidly. It is also very beneficial to the occurrence of locusts and can easily cause harm. In serious cases, worms are spread over the whole tree, resulting in a large number of deciduous and fruit-dropping peach trees. Leaf, great loss. Therefore, we must strictly prevent, reduce harm, combined with the prevention and control of other pests, spray once every 7-10 days, the minimum requirement is not to roll leaf, and pay attention to the use of organic phosphorus, pyrethroid broad-spectrum pesticides, in favor of natural enemies activity. Pharmaceuticals available: 50% anti-inflamy WP 1500-2000 times, 20% osmium 1000 times, 5% acetamiprid 3000 times, 1.8% avermectin 3000 times, 10% imidacloprid Wet powder 2000 times liquid and so on.

Spacer & Bushing

Spacer and Bushing

The Spacers are designed to hold materials a predetermined distance away from the surface they are mounted to, or mount two items a set distance apart. Sizes and materials vary depending on intended use.

The Bushings are used as spacers between pulleys and gears to prevent damage caused by vibration and dynamic loads. The durable bushing material is corrosion resistant.

The material of Spacer Bushing including carbon steel, Stainless Steel, Aluminum and Brass. Dimensions are according to custom made. The zinc-plated finish provides some corrosion resistance.

Spacer & Bushing,Spacer Bushing,Shaft Spacer, Bushing Spacer

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