Q: The eradication of apple snails in the pesticide market, which products? Want to do some of this new product, do not know which drug is better? And some good apple snail control program.
A: 45% of triphenyl tin acetate WP, can kill the snails but also control rice blast, rice false smut.
6% metaldehyde granules, can kill snails, but also kill the dryland cotton, fruits and vegetables to a snail, is a feeding attractant, good results.
50% of the ammonium salt to kill snails ethanol amine WP, specifically to kill off snails in paddy fields, earlier, is more common on the market a product, spraying the snail can not be used, otherwise there will be injury, remember!
26% metaldehyde to kill snails ethanol amine salts SC, immersion and spray control for apple snails, but be careful not to excessively high concentrations, in strict use of the recommended dosage. Currently on the market will top MOLLUSCICIDES several classes.
pangau: best tea, bran, green, efficient, cheap, provide fertilizer, improve soil physical and chemical properties.
Quality rice: there is 80% to kill snails amines, can Pensha. Kill the egg masses. But the embarrassment of the current MOLLUSCICIDES tea cake is not as durable and economical efficacy.
Rain, clear day: tea cake left after oil extraction of oil tea seed things.
Native apple snails in South America Amazon River basin, one of the first invasion of alien species in China is one of 16. Lo also known as big bottle of apple snail, apple snail, into the 80s of last century in Taiwan, Guangdong, Fujian and other provinces, was the beginning of farming, but tastes good, not good market prospects, which were a large number of discarded wild, gradually spreading to farmland , caused serious damage to the crops. Apple snails in rice production has become a major pest, and the trend of increasing year by year.
Plant Protection Station of Guangdong Province, according to statistics, in the second half of 2007, the province's area is about 503 million mu of apple snails second place; the first half of 2008, 393 million mu times the second half of 2008, about 700 million mu of times; first half of 2009, the stains water, place emphasis on low-lying terraces, up to 600 million mu of times.
In the early planting (throwing) seedlings before and after, because low winter temperatures, less water, will die a part of Lo; planted in late, after April-July spawning, hatching eggs, breeding base increase; and rain, egg mass As the water spread and expand the scope of damage.
Apple snails in rice seedlings mainly feeding on young seedlings to the tillering stage, the first leaf appears short, a day or two of whole fresh leaves are light, resulting in Rice Seedlings Deficiency, tillering reduced, eventually leading to production cuts, severe cuts of 10% -30 %, some even up to 50%. 4-6 months each year, 8-October is the peak of spawning and egg incubation, but also as snails and infestation of the old peak concentration of juvenile snails.
In recent years, the Pearl River Delta in Guangdong, Leizhou Peninsula Water Network and the northern part of Guangdong and other developed areas in the mountains of the wetland more serious. From the country as a whole, the area south of the Huaihe River have occurred, but the Guangdong, Guangxi, Fujian and Hainan provinces have done much worse.
Golden Apple Snail has three characteristics, namely, strong resistance, miscellaneous eating habits, eat big, eat a snail as its own weight every day about 2 times; second breed quickly ,25-38 ℃ are suitable for spawning, each time about 500 eggs, the second time interval of 3-5 days to lay eggs, and the occurrence of overlapping generations Lo; third major damage, in addition to damage crops, the trematode Echinostoma or volume, of Angiostrongylus cantonensis in the intermediate host, a very likely to affect the health of people around.
In addition to tea, bran addition, there are four categories of products: 45% of triphenyl tin acetate (such as: percentage Lo enemy), kill the snails amine, 6% metaldehyde (eg: close up), 65% sodium pentachlorophenol ( such as: Lo consumption). There are 50% of the ammonium salt to kill snails ethanol amine, 6% polyacetal carbaryl (example: Qing Lo), etc., indicate the market products that can kill a lot of snails, only to kill snails amine to about 50 enterprises in the production.
In the insert (throwing) seedlings two days before the 65% of PCP-Na Duishui diluted, poured into the rice field, killing snails is very effective, the cost is 4-6 yuan / mu. If the plug (throwing) seedlings again after the invasion seriously, she applied a second drug. However, due to the frequency of use the drug more easily lead to reduced production, must be used with caution, not very serious, the approach taken to fill the gaps with seedlings on the line. Drains from the water source to fight drugs at the start, so once a year-round drug can effectively control apple snails.
Tea cake to kill snails, the occurrence of rice per mu is not a serious spread 3 pounds, 5 pounds severe acre spread, the cost cheaper than the use of pesticides 2-3 yuan / mu. However, rice bran alone turning green tea has some influence, and with the application of a urea. Sprayed from the seedlings will begin to general prevention, 65% of the sodium pentachlorophenol, 45% of triphenyl tin acetate is a good pharmaceutical effect.
Before and after planting drugs is critical, comprehensive prevention and treatment, with emphasis on the first generation of winter into snails and snail eggs into the prevention and treatment before the peak, lowering the amount of the second generation occurs.
First, the agricultural control. Using Dongxiu water, clear ditches silt, weeds, destruction of snail hibernation sites, reduced survival; of water canals and low-lying place, available drugs to kill snails; of serious plots, the snail blocking the river to prevent downstream transmission.
Second, physical control. Abstract catch Lo artificial eggs in spring and autumn spawning peak, once every 2-3 days, removal of egg destruction.
Third, biological control. Before rice transplanting in the spring or summer and autumn after the harvest of rice, ducks into the field, repeated cycle of stocking, the ducks can eat a lot of young snails.
Fourth, chemical control. Triphenyl tin acetate 45% WP, molluscicidal amines and the production process through the transformation of 65% sodium pentachlorophenol Pharmacy.
Three-phenyl acetic acid using 45% tin and tea bran, the cost is 6 yuan / mu. Amine with 50% ethanol ammonium salt to kill snails to kill snails is also good, cost about 4.5 yuan / mu. Current from the price, the best of the three is 65% MOLLUSCICIDES pentachlorophenol sodium, 45% of triphenyl tin acetate and 6% metaldehyde. 65% in the use of pentachlorophenol sodium, avoid interpolation (parabolic) seedlings watered after spraying, can be mixed sediment applicator. 6% metaldehyde mainly used to kill snails on dry crops, because it dissolves in the water pharmacy, efficacy will be reduced.
Apple snails are nocturnal herbivores, spraying agent is best in the afternoon, to maintain water depth of 1 inch. And toxic agents, pay attention to people and livestock, fish safety.
Pods: 70% wettable powder to kill snails amine. The high toxicity of pentachlorophenol sodium, soil residue serious, looks like it is disabled.
Rain, clear day: sodium pentachlorophenol, now seems to transform the process, reducing the number of toxicity. Not disabled.
yangcg0215: 20kg of urea per acre can be better to kill snails.
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