The western highlands of the province are entering the peak of the rainy season, leading to a decrease in the number of sunny days, affecting photosynthesis and plant resistance.
Pests attack many types of crops
Coffee is the crop most adversely affected by this weather. According to statistics, the whole province has more than 106,400 hectares of coffee trees in the young fruit growing stage. However, currently about 1,163 hectares are attacked by mealybugs, the damage rate is about 12.5 - 25%, locally up to 50%. In addition, coffee is also affected by rust (1,634 hectares), dry branches (621 hectares). The areas heavily affected include: Kbang, Ia Grai, Chu Se, Duc Co, Ia Hrung...
Mr. Bui Trung Hung (Tan An village, Ia Hrung commune) shared: “My 3-hectare coffee garden is bearing young fruit, but due to prolonged rain, the trees have many diseases such as white aphids, dry branches, rust, etc. I have pruned diseased branches, used biological products and balanced fertilizers to maintain stable productivity.”
Mr. Bui Trung Hung (Tan An village, Ia Hrung commune) pruning infected coffee branches. Photo: Nguyen Diep
Some communes that grow a lot of pepper such as Mang Yang, Duc Co, and Chu Puh also have the yellow leaf disease causing damage at a rate of 5 - 10%. It is estimated that about 391 hectares of pepper are infected, of which 125 hectares are lightly infected, 166 hectares are moderately infected, and 100 hectares are severely infected. Meanwhile, on passion fruit trees, there are also harmful viral diseases at a rate of 5 - 17%, with about 8 hectares infected, mainly in Duc Co commune. In addition, there are also brown spot, downy mildew, and thrips causing local damage...
In the eastern plains of the province, the prolonged hot weather has made the autumn and summer rice crops susceptible to stem borers, leaf rollers, and brown spot disease. The whole province has more than 36,200 hectares of autumn rice and 41,900 hectares of summer rice. Brown spot disease alone has appeared on over 20 hectares of autumn rice at the heading and milking stages, with a damage rate of 10 - 20%. In addition, leaf rollers, root suffocation, thrips, brown spot disease, etc. have occurred and caused local damage to summer rice at the 3-leaf stage; grain smut disease has caused local damage to autumn rice at the heading and greening stages in Bong Son, Hoai Nhon Tay, and Hoai Nhon Nam wards.
In addition, peanuts were infected with leaf spot disease (9 hectares), cassava was infected with red spiders, vegetables were infected with silkworms, flea beetles... were also recorded in many communes such as: Hoai Nhon Tay, Cat Tien, De Gi...
Actively monitor and prevent pests and diseases
Mr. Tran Van Dang - Officer in charge of the Plant Cultivation and Plant Protection Station of Region 8 - said: The area managed by the station includes communes in the western highlands of the province, currently having a large area of long-term industrial crops such as coffee, pepper, and durian. Coffee trees alone have 32,100 hectares, of which about 26,100 hectares are in the business and harvesting stage. Currently, coffee trees are being affected by a number of pests and diseases such as green scale insects, rust, dry branches, and young fruit drop. However, the level of damage is still at a mild to moderate level.
“The station regularly sends technical staff to monitor the fields and instruct people on appropriate prevention methods for each stage. We encourage the use of biological products and balanced fertilization, instead of overusing chemicals,” Mr. Dang emphasized.
According to Mr. Kieu Van Cang - Deputy Head of the Department of Cultivation and Plant Protection, the unit has directed the stations to coordinate with the People's Committees of communes and wards to inspect, forecast pests and diseases, and guide appropriate prevention and control measures.
“People should apply integrated pest management (IPM) measures, produce safe vegetables according to VietGAP processes, prioritize the use of biological and herbal medicines, and comply with quarantine periods,” Mr. Cang recommended.
The Department of Crop Production and Plant Protection forecasts: In the coming time, the situation of pests and diseases will continue to develop strongly. On rice, there is a risk of the appearance of 2-spotted stem borer, brown spot disease, root suffocation, grain rot, nematodes... On coffee trees, mealybugs, rust and young fruit drop disease continue to cause damage. In addition, vegetables and short-term industrial crops are also affected by diseases such as powdery mildew, anthracnose, root rot...
To protect crops, experts recommend that people increase field and garden visits, monitor weather developments, apply biological measures, and combine with technical guidance from experts for timely and effective treatment. For example, on coffee trees, people need to cut branches to create ventilation, collect diseased branches from the garden to destroy, to reduce the source of accumulated damage. Regularly check the garden, monitor the occurrence of pests and diseases to manage and prevent them promptly.
Source: https://baogialai.com.vn/chu-dong-phong-tru-sau-benh-cho-cay-trong-post560605.html
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