Main points of biological control technology for "treating cocoons with cockroaches"

“Using wolfberry to cure lice” is a biological control technology that is a production technology of pollution-free agricultural products and green food. Its application has greatly reduced the use of chemical pesticides, reduced pesticide residues and pollution to the environment, and is beneficial to the people and the people. Practical technology, as the technology is easy to grasp, is therefore well received by the masses. In order to make more effective use of citrus farmers, the main points are briefly described as follows: 1. Manual release of predatory mites to control citrus pests. Predators used to control citrus claws and rust in citrus are produced in Fujian Province. The planting institute of the Provincial Academy of Agricultural Sciences has introduced and trained the courgettes from the United Kingdom. It has the following characteristics: First, it has a large amount of prey. One day can prey on 6-10 claws or about 80 rust lice, and can hunter 300-500 heads or rust 2,000-3000 heads of whole claws in one life. Secondly, they will actively search for prey and have strong swimming activity. The order of preference for prey: egg-young-puppy; four is only released once a year. Manual release of cockroach crow's technical operation: 1, to reduce the base of insects. Before the cockroach was released, the density of the cockroaches was controlled at 300 heads/louver through chemical control. The lower the density of control, the more rapid the control of the release of predatory cockroaches; the control of the number of insects of the scale insects can be controlled by applying the acaricide seven days prior to the winter clearing of the garden and the release of predatory cockroaches. 2, the release of prey. Each citrus fruit releases about 300 heads (300 heads per paper bag, including eggs, cubs, and pupa). When released, the paper bag is cut into two holes and hung at the primary branch of the citrus. 3, release time. May be considered for release during the beginning of summer in May and autumn in August. 4. Do not use chemical insecticides or acaricides during the release of cockroaches. Within 30 days after the release of the predatory plague, the locusts and the predator cricket have a process of resistance, that is to say, the locusts still have a higher density and then fall rapidly. The reason is that the cockroach plucked a large number of quail eggs early in the blunt cockroach, and the cockroaches were at liberty, but they interrupted the opportunity to breed offspring. Second, cockroaches were hatched and grew, and the team grew stronger and enhanced its predation ability. Second, using biological agents to control the orange leaf miner during the period from August to September, each shoot 1-2 sprays of 0.3% azadirachtin EC, control citrus leafminer, and treat wood lice, aphids and other pests. Biological agents are safe for predators. Third, the use of electronic moth kill lamp pests use the sensitivity of the insects to the light source and the vibration band, let the insects flutter the lights, and through the high-voltage power grid to kill the moth-eaten pests. It is a practical physical control technology. We used the electronic moth killing lamp produced by Beijing Fengmao Plant Protection Equipment Co., Ltd. to seduce and kill pests in the orchard. After collection and analysis, we were able to seduce and kill 6 pests, 15 families and 28 pests in order of Coleoptera (scarabaeoidea), Lepidoptera, and Hemiptera. (蝽蟓) is dominant, and the rate of false precipitating to natural enemies is low, compared with the total amount of trapped insects, and false enticing natural enemies (bujiao, crickets, crickets, etc.) only account for 2.18%. From the viewpoint of balance between controlling pests and protecting natural enemies, The electronic moth killing lamp scientifically grasps the principle of seeking advantages and avoiding harm in the selection of light sources and vibration bands. Therefore, it has little effect on natural enemies. In addition to pests in the Citrus Garden in our province, the insects such as Helicoverpa assulta and Aphis gossypii cause fruit drop. Because of these harms, the light source and vibration wave of the electronic moth killing lamp tend to be strong, and the effect of trapping and killing fruits is more obvious. According to our pilot survey from October 3, 2002 to January 20, 2003. The average 667m2 fruit drop (including physiological fruit drop, the same below) in the demonstration area using the electronic moth eradication lamp was 502 kg, while the control area averaged 609 kg, which was 21.3% higher than the demonstration area. Generally, every 15-20 mu hangs a lamp. The greater the number of contiguous lights, the larger the area and the better the control effect. Fourth, improve the ecological environment The citrus garden has a long production cycle, the general ecological system is relatively stable, the biodiversity is high, and the natural enemies are rich. However, the people often have a misunderstanding that weeds often compete with citrus and often use chemical weed control. Agent, as a result of the destruction of the ecosystem. For example, 藿香藿 is a good host and habitat for predatory mites. After using herbicides, the food chain is broken and the predatory mites are rapidly degraded. The ability to control natural disasters is weakened, and the pests will inevitably rise. Therefore, before the cockroach is released, the cultivation of benign weeds needs to be well done, such as planting musk oysters and retaining benign weeds, so that natural enemies such as cockles and crows have a good habitat.

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