Chủ động phòng trừ bệnh lùn sọc đen phương nam
(Baothanhhoa.vn) - Qua kiểm tra của Trạm Bảo vệ thực vật huyện Quảng Xương cho thấy thời gian gần đây tình trạng rầy nâu, rầy lưng trắng lứa 5 đã nở và gây hại nhẹ, cục bộ ở một số xã, như: Quảng Ngọc, Quảng Bình, Quảng Trạch, Quảng Trường... với mật độ từ 500-600 con/m2, cá biệt có nơi lên đến 2.000 con/m2.
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