dr Mai Van Hao, director of Nha Ho Cotton Research and Agricultural Development Institute (Nha Ho Institute), said that besides Ninh Thuan, many other places in the South Central Region have conditions to develop apple trees like Binh Thuan, Khanh Hoah. Recently, the apple area in the South Central Region is very large, and the product quality is very high.
“However, pests such as fruit flies, fruit borers and other pests have seriously affected productivity, yield and product quality. Therefore, after 3 years of research, we identified technical solutions to ensure the control and management of fruit flies, fruit borers and other pests on apple trees, including nets, the entire production area to prevent flies and fruit borers,” shared Dr. Mai Van Hao With.
According to the method, apple orchards are installed with a system of approximately 4 m high pillars and 4 – 5 mm wire ropes for tensioning, which form a stable framework system. After the frame was completed, people covered it with insect netting, including the roof and around the garden. The design of the net roof must be flexible and scientific to allow the net to be pulled in and out when needed, the net around the garden must be designed with a slope of more than 15% to reduce wind pressure. Anchor lines and inward anti-tipping pillars must also be installed around the garden.
“This is a prerequisite for safe and high-quality apple production. Especially towards organic apple production to meet market demand,” said Dr. Mai Van Hao, adding that the full mesh bag model The garden to prevent flies and apple borers does not require too much investment, while the efficiency is large and the exploitation time is long, so the application is easy for farmers. At present, Nha Ho Institute has transferred and disseminated the integrated pest control process for people to apply in production.
Mr. Dang Xuan Thuan (Ninh Son District, Ninh Thuan) said that his family planted 7,000 m2 of apples. In the past, 70-80% of the family’s apples were damaged by flies and fruit borers at harvest time. There are years when the family has to use a lot of pesticides to prevent this, but not very effectively.
“Now there is a mesh screen shielding method, so it is very effective, the apples are not damaged, the yield is high, the design is beautiful, the quality of the apples is also better, need to use more medicines. Plant protection should save costs and ensure health, protect the environment and guarantee the quality and safety of the products. This is a very effective way to ensure income and sustainability,” Mr. Thuan shared.
Since 2019, the agricultural sector of Ninh Thuan Province has implemented a fruit fly prevention net bag model in two districts, Ninh Phuoc and Ninh Son, covering a total area of 2.35 ha. By August 2022, this model was in effect, with people paying attention, having expanded to a total of around 642 hectares in the province with over 2,000 participating households, reaching a quota of over 66% of the total apple acreage. deliberately.
“This model has helped apple growers prevent harmful organisms, particularly two objects that have been common and have caused damage with a high rate of apple flies and apple borers. shared Mr. Pham Dung, Director of the Cultivation and Plant Protection Subdivision of Ninh Thuan Province.
According to the Ministry of Cultivation and Plant Protection of Ninh Thuan Province, apples are one of the typical trees of Ninh Thuan Province, and now the province has over 1,000 hectares. This is one of the crops that bring great economic value to farmers.
Over the years, the provincial agricultural sector has implemented models, particularly those related to varieties, cultivation techniques and management of harmful organisms. Recently, the most famous model is the mesh bag model to prevent yellow flies from chiseling fruit, which is a very effective model.