Seasonal occurrence and damage by thrips on open red pepper in Jeonbuk Province
2006
Moon, H.C. (Gochang Watermelon Extention, Jeonbuk ARES, Gochang, Republic of Korea), E-mail: [email protected] | Cho, I.K. (Jungup Agricultural Development and Technology Center, Jungup, Republic of Korea) | Im, J.R. (Jeollabuk-Do Agricultural Research and Extension Services, Iksan, Republic of Korea) | Goh, B.R. (Jeollabuk-Do Agricultural Research and Extension Services, Iksan, Republic of Korea) | Kim, D.H. (Gochang Watermelon Extention, Jeonbuk ARES, Gochang, Republic of Korea) | Hwang, C.Y. (Chonbuk National University, Jeonju, Republic of Korea)
Seasonal occurrence of thrips and its damage on fruits were studied at in open field red pepper in Jeonbuk Province. The kind of thrips were Franklinella occidentalis and F. intonsa. The ratio of F. occidentalis was about 30% in periods of survey. Density of thrips increased in late May and showed peak occurrence in early to middle July. The peak occurrence of thrips was appeared at 4 pentad June, 2 pentad July, 3 pentad August, and 4 pentad September. The part of fruit damaged by thrips became discolored and roughed. When turned red, the colors of damaged parts changed from dark brown to yellowish brown.
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