 หัวเรื่อง:ประสิทธิภาพของ EM ในการป้องกันกำจัดเพลี้ยไก่แจ้ส้ม Diaphorina citri Kuwayama ในส้มเขียวหวาน ผู้เขียน: Chalida Unaha, Saranchit Krairiksh, Sathorn Sirisingh สื่อสิ่งพิมพ์:pdf AbstractThe Effectiveness of EM for controlling asian citrus psyllid. Diaphorina citri Kuwayama was conducted at Entomology and Zoology Division, Department of Agriculture during August to December 1994. The EM was tested for its insecticidal and repellent properties on the 2nd and 3rd nymphal stages. The experiment consisted of 4 treatments : including 1.) spraying with mixed solution of molasses, ethyl alcohol, acetic acid, EM and Water (ratio 1:1:1:1:10, at 15 days fermentation) 2.) spraying with the mixed solution as same as above but without EM 3.) spraying with water only and 4.) untreated. The result showed that after spraying 3 days, psyllid nymphs in all treatments were not be killed and they also develops into the next growing stage. Moreover, EM had on property on repellent to the asian citrus psyllid. It was concluded that EM was not effective in controlling asian citrus psyllid. |