Sâu bệnh giảm đáng kể trong vụ lúa hè thu
(QT) - Thông tin từ Sở Nông nghiệp &PTNT Quảng Trị cho biết, đến thời điểm này trên toàn tỉnh có từ 700-800 ha lúa bị rầy nâu, xuất hiện rải rác ở một số xã của 2 huyện Hải Lăng và Triệu Phong. Tuy nhiên, mật độ rầy thấp, từ 5-7 con/m2. Sâu cuốn lá có xuất hiện ở một số địa phương nhưng với diện tích không đáng kể. So với cùng kỳ năm trước, vụ hè thu 2011 dịch bệnh giảm đáng kể, đặc biệt chưa xuất hiện một số bệnh nguy hiểm như lùn sọc đen. Sâu bệnh giảm trong vụ hè thu là do nông dân các ...
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