• KOREAN JOURNAL OF CROP SCIENCE
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• v.46 no.3
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• pp.180-183
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• 2001

This study was conducted to find out the effect of ripened grain and rice quality by the breeding of rice dust mite (Steneotarsonemus spinki). Growth temperature of sample (Suwon 441 and Ilpumbyeo) was maintained from 22$^{\circ}C$ (during night) to 26$^{\circ}C$ (during day) in a controlled phytotron. Plant hight and number of panicle could not showed the difference by the discoloration degree of leaf sheath. But number of spikelet was reduced affected by discoloration degree of leaf sheath. Ratio discoloration of grain was increased according to circumstances more discoloration degree of leaf sheath in Suwon 441 then Ilpumbyeo. The perfect rice grain was observed to similar Suwon 441 and Ilpumbyeo in the IV degree of ratio discoloration of grain, but less Suwon 441 than Ilpumbyeo in III and II, in such a case comparison between coloration and discoloration.

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2001.05a
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• pp.140-140
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• 2001

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2004.05a
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• pp.177-177
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• 2004

• Proceedings of the Korean Society of Crop Science Conference
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• 1998.04a
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• pp.63-64
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• 1998

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2000.05a
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• pp.125-125
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• 2000

• Korean journal of applied entomology
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• v.8
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• pp.29-35
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• 1969

The author collected 4 species of mites from apple trees. These are as follows: (1) Mediolata mali (Ewing) (2) Tydeus globiferus Baker (3) Cheyletia sp. (4) Amblyseius americanus Garman

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2003.10a
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• pp.171-171
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• 2003

• Applied Biological Chemistry
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• v.45 no.1
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• pp.37-41
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• 2002

Seven organophosphorus compounds and three carbamates of some monoterpenoids were synthesized and tested for insecticidal activity to five insects, brown plant happer (BPH, Nilaparvata lugens), green peach aphid (GPA, Myzus persicae), diamond bark moth (DBM, Plutella xylostella), tobacco cut worm (TCW, Spodoptera litura), and two spotted spider mite (TSSM, Tetranychus urticae). With the administration of 500 mg/l concentration thiophosphates of carveol and geraniol showed motality of from 95% to 100% to BPH and DBM. On the other hand, phosphates of menthol, thymol, and borneol had also good to moderate activity to BPH and TSSM insects at the same concentration.

• Korean journal of applied entomology
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• v.4
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• pp.65-66
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• 1965

This study was intended to know the histological damage of the gall on the leaves, peduncles and calyx of Lycium chinense $M_{ILL}$ formed Eriophyes kuko $K_{ISHIDA}$ during 1962 to 1965. The results are summarized as follows; 1. Eriophyes kuko $K_{ISHIDA}$ fed on only the Palisade layers of the loaves of Lycium chinense $M_{ILL}$ were injured by boring. 2. From the 1st to 10th day, some parts of the spongy layer of the Lycium chinense $M_{ILL}$ leaves were injured, but variation were not significant in this period. 3. From the 15th day, Eriophyes kuko $K_{ISHIDA}$ injured not only the spongy layer of Lycium chinense $M_{ILL}$. leaves but also the great part of e chloroplast of the loaves, and the sponginess caves were appeared inside of the galls.

• Korean journal of applied entomology
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• v.29 no.1
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• pp.6-13
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• 1990

The banana insect pest species and their damages were surveyed from 9 vinyl hoses of Cheju Island on August in 18. A total of 5 pest species wre found ; banana root weevil (BRW) Cosmopolites sordidus Germar (Curculionidae) a wireworm Melonotus sp. (Elateridae), a spider mite teranychid sp. (Tetranychidae), mulberry mealybud Pseudococcus comstocki (Kuwana)(Pseudococcidae), and common cutworm Spodoptera litura (Fabricius)(Noctuidae). Among them, the BRW which attacked the rhizome of banana plant was newly recorded from Korea. It is assumed that the weevil would be introduced from Japan, Philippine or SriLan-Ka wiht the banana seedlings imported during early 1980's.