Successful production of yellow snail killers with herbs

Vietnamese scientists have successfully researched and successfully produced yellow snail-killing pesticides from plants that do not harm the environment and useful aquatic species.

This product has been applied in many localities throughout the country and achieved positive results.

Originating from South America, introduced to Vietnam 15 years ago, up to now, yellow snail has become the most pestilent and difficult to control in our country. On average, every year, golden snails eat more than 200,000 hectares of rice.

In addition to rice, yellow snail also harms algae, spinach, taro, eggs and is like a crusher because it can be eaten continuously for 24 hours. In particular, they recently nibbled on newly planted melaleuca bark causing death in Dong Thap Muoi.

Many measures to control yellow snails are applied but manual measures are not effective, using chemicals is massively leading to decline in useful aquatic species .

Kill yellow snail with herbs

The team of the Plant Protection Institute explored 28 toxic plants and selected three three species of plants available in Vietnam, such as grass, grass and cool trees as the main material to produce snail-killing drugs. gold. These are three BOURBO products 8.3 BR and TICTACK 13.2 BR dry powder and CH-01 extract form

' The important thing now is not and cannot remove yellow snails from the ecosystem, but how to minimize their harmful effects and use them for human benefit ' - Dr. Nguyen Truong Thanh, the leader of the research team, said.

The toxin of these three plants stimulates the secretion of sebum, resulting in dehydration and death.

These three preparations have been used on a large scale in Dong Thap and Lang Son, where the density of yellow snails in some districts such as Huu Lung and Thanh Binh reaches 100-200 individuals / m 2.

Yellow snails eat well, grow fast and have terrible reproductive power.A female lays an average of 2 times per month, each delivery can reach 500 eggs within 1 week, 2 months old has started to lay eggs and live for 4-6 years.They live in many places with water such as ponds, marshes, lotus swamps, water canals, rice fields, and withstand extreme conditions like polluted water, stagnant, and lack of oxygen.

Yellow snails can bury themselves in dry season mud and sleep for 6 months, waiting until the cows live and cause harm. They can withstand very high density, 1000 heads / m ² .

The results show that after 2 - days of sprinkling, the effectiveness of killing yellow snails of inoculants in rice fields reaches 80 - 90%, does not cause death of fish and other aquatic animals.

The active ingredients in the product decompose after a few days so it is safe for the production of clean agricultural products. Each farmer only needs to use one of these three preparations to treat fields and ponds contaminated with yellow snail once before or immediately after transplanting.

The use of the drug is very simple, can be mixed with fertilizer or sprinkled normally in the field. The dose used each time is 10-20kg / ha at a cost of 6000 VND / sao or 160,000 - 200,000 VND / ha, lower than using chemical drugs.

Recently, the Ministry of Agriculture and Rural Development specifically permitted the production and use of these products nationwide to kill yellow snails.

Expected, the Plant Protection Institute will produce about 100 tons of TICTACK 13.2 BR this year and prepare to transfer this technology to produce inoculants on a large scale at ADC Company located in Ho Chi Minh City.