Since Lishui introduced Changguag in May 2000, it has now developed an area of ​​nearly 10,000 mu, effectively boosting the income of mountain farmers. However, with the increase in the year of planting, the accumulation of insects and pathogens, and the delay in prevention and control measures, the occurrence of pests and diseases in the larvae will increase and spread. In addition to the major diseases and insect pests of the caterpillar, the “three pests and three diseasesâ€, a small amount of fruit fly was observed in 2002. Occurrences took place in 2003. In 2004, a relatively large number of fruit flies infested the melons, causing more serious damage to the fruit flies. The area of ​​damage rapidly increases, and the hazardous fields suffer from 10-20% of the yield and the loss of the quality of the seeds. The severity has reached more than 30%, and there is still a tendency to spread quickly and expand the hazard. If no effective measures are taken to prevent and control It will certainly cause a greater adverse impact on the production of guarana, which will seriously affect the growth of the melon farmers. According to field observations, indoor breeding appraisals, and preliminary results of consulting relevant data, the harm symptoms and control measures of fruit fly melon flies will be briefly described as follows: 1. Fruit flies that are harmful to symptoms, also known as “acupuncture bees†and “parasitoids†"Yellow flies" resemble ordinary flies, but their body color is yellow. There is a tail at the tail, an ovipositor, which is a type of fruit fly. The adults lay their eggs in the skin, and the larvae feed on the flesh, which causes the rot and fruit drop of the hanging cucumber, which seriously affects the yield and quality of the hanging cucumber. The fruit flies that endanger the cucurbits are omnivorous pests, and there are more than 250 kinds of hosts. The breeding ability is very strong, and there is migration, chemical control is difficult to achieve the desired results. Because its eggs are produced in the skin of the cucumber through the tail pin, the eggs are difficult to find. Therefore, we have only photographed three species of worms at present: larvae, cockroaches, and adults are studying and observing their life histories and intermediate hosts. As the fruit fly of Guava is the same as the “cockroach worm†that occurs in a large area in southern China's fruit production areas, the Bolu County Agricultural Technology Extension Center and other units in Huizhou of Guangdong Province after years of experiments have concluded a set of prevention and control measures, and in reality The application has achieved good results. The following is a brief summary of the results of Borrow's experience and other data. Second, the Guagua "fruit flies" prevention and control measures (a) during the period of vegetative growth and young fruit control measures during this period, due to the lack of fruit as a "fruit fly" (following colloquial) Egg carriers and larval foods are not conducive to the reproduction and harm of "carpoda". The main insect state of "Cocalidae" is adult, so the prevention and control measures based on trapping and killing by sex attractant and spraying by melon fields should be adopted to reduce the base number of insects effectively, and light trapping and killing adults can also be adopted. 1. Trap adult males: Use a special fruit fly trap, or use a plastic mineral water bottle, and open one 1.5-2.0 cm hole on both sides, and suspend one fiberboard (about 250.9 cm dipping solution) in the middle of the melon garden. Peripheral, choose shady places to hang, about 1.5 meters above the ground, hung 2-4 lure bottles per acre, every 20 days or so, add the liquid once. 2. Light trapping and killing of adult worms: Using the phototaxis of fruit fly, set a certain amount of the light source around the melon field (set according to the area of ​​the melon field, usually one to two mus of an acre, ordinary light bulb or black light lamp). Put a box of water under the lamp, the water drops Into a small amount of kerosene to kill adults, reduce the population base. 3. Prevention and control of spraying in GuaTian: Use 80% dichlorvos or 90% trichlorfon or 45% malathion for rotation, add 800-1000 times of water and spray in the field to kill a large number of fruit fly males and females. The spraying time is around 10:00 am or 4 pm. The above-mentioned agents such as adding 4.5% beta cypermethrin (mixed at 1:1 and then diluted with water 800 times) have better spray effect. (II) Prevention and control measures during fruiting period and fruit harvesting period During this period, due to the rich food materials, large breeding capacity, and fast breeding speed, various insect states are present at the same time. The insect density and fruit damage are rapid. The rise is serious. In order to effectively control the damage of the "carpoda" and to control the victimization rate of the fruit at a relatively low level, it is necessary to conscientiously do a good job of mobilization and organization of unified prevention and control, adopt unified command, and act in a unified manner to implement comprehensive prevention and control measures. 1. Picking in time: The timely picking of ripe fruits can reduce the harm of “fruithoppers†and prevent the mature larvae in the overripe fruits from popping the fruits into the soil. 2. Use and treatment of ripe fruit and fruit: (1) Use ripe fruit and land. The fruit is seduce and kills the fruit worms. The damaged fruits in the field are crushed. The decoy is made by adding 80% of dichlorvos or 50% of malathion in a ratio of fruit to medicine of 500:1. After the containers of plastic lunch boxes or paper cups are scattered in the orchard (the device should be capable of blocking rainwater, the flies can enter, but not the function of feeding chickens, etc.), 5-10 points per acre, updated every 10 days once. (2) Insist on the work of clearing the garden, and strictly deal with the handling of ripe fruits and fruits. The fruit is killed during the fruiting period. Whether it is on the vine or on the ground, it should be picked, picked, and treated in a centralized manner. Once a week, the collected fruit should be used to make the poisonous lice. In addition, the excess part can be immersed in the pool for more than 8 days (preferably for a long period of time), or buried in the pit, covering the soil with more than 30 cm and compacting the soil. (3) Increase the amount of sexual attractants. In the fruiting period, increase the amount and scope of attracting bottles, and suspend 2-3 attracting bottles per acre. (4) Do a good job of soil insecticide treatment. As the fallen fruit and the mature insects in the ripe fruits on the scaffolds are gradually injected into the soil, the chemical insecticides shall be applied to the soil in the melon garden to kill the larvae of the earthworms or be feathered from the soil. Adults. The available pesticides are 50% fenthion, 50% phosphorous or 50% diazinon, and 800-1000 times of water sprayed on the ground of the melon garden. (5) Fruit bagging. This method is currently one of the most effective methods for preventing and controlling fruitworms. The method is to put a special set of fruit bags on the young fruit after fruit-cutting, so as to reduce the opportunity for females to lay eggs, and at the same time ensure that the fruits are not damaged by insects. However, this method is labor-intensive and increases production costs. (c) Strengthening fruit fly monitoring. Do a good job in forecasting and forecasting the insects and focus on the unified actions. "Fruithopper" is the first peak in May to June each year, and the highest peak in the whole year in August and September. (IV) Introduction of Pharmacy: 1. "Echinococcus" specific sex attractant: The main ingredient is methyl eugenol, which has a strong attraction to males, and the use of a mixture of insecticides to attract large numbers of sex attractants In addition, adult male adults can reduce the probability of wild female adults accepting mating. After a long period of trapping, the insect population density can be greatly reduced. 2, chemical spray are: avermectin, 2.5% Kung Fu EC, 90% trichlorfon crystals, 50% malathion EC, 40.7% Lost EC and so on. 3, the efficacy of soil treatment agents are better: 50% phosphorous sulfate production, 50% thiophosphorus EC. Third, pay attention: Because the purpose of the harvest is to eat as a food, so in the prevention and control, promote agriculture, biological control (clear garden, trapping, etc.)-based, need to use chemical control when high efficiency, low toxicity, low Residue pesticides, especially biopesticides with the same efficacy, are good.
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In the die casting process,higher specific pressure is required, so that higher filling speed can be achieved,which is useful for alloy to overcome mold filling resistance.and effectively fill each part of the cavity.The Casting General Tolerance is Grade GB-CT4.
Process Technology: High pressure die casting,Shot Blasting,NC Machining,Spray Coating
Product Dimensions: Customized
Casting General Tolerance: Grade GB-CT4
Flow Processes: Die casting, Degating to remove the residual of the gate, Polishing,Deburring,Polishing to remove the parting line, flash,CNC Turning, Cleaning, Packaging, Storaging, Shipping
Control Measure: Incoming Material Test, First Article inspection, Routing inspection, Final item inspection, and Outgoing quality control
Inspection Equipment: CMM, Caliper, Plug Gage, Screw Gauge
Application: Cabinet
Certificate: IATF16949:2016,ISO14001:2015,ISO45001:2018
Lead Time: 30-35 days
Trade Term: FOB Ningbo
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