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        검색결과 9

        5.
        2020.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        갈색날개매미충(노린재목: 꽃매미상과)은 한반도 침입해충 중 하나이다. 하지만, 그동안 정확한 종 동정이 되지않아, 분류학적으로 또는 농업적으로 혼선을 야기시키는 문제가 발생하였다. 이번 연구에서는 한반도에서 발생된 표본들의 관찰을 통하여 이 종의 학명을 Ricania sublimata로 확인하였다. 또한 한국산 큰날개매미충속에 대한 검색표를 제공한다.
        4,000원
        8.
        2010.10 구독 인증기관·개인회원 무료
        The impotance of the color stimuli in foraging and host-finding by phytophagous insects are determined by various experiments. Since the lantern fly Lycorma delicatula (Hemiptera: Fulgoroidea) was first reported in Korea in 2006, damages on grapevine are growing annually. It is often observed that nymphs and adults of L. delicatula shift host plants several times during the course of the season. However, information about the dispersal behavior of L. delicatula is scarce. We conducted a series of three experiments to determine possible cues of visual orientation in L. delicatula. In the Light/Dark choice experiment, nymphs had a choice of light and no light conditions in the T-maze. In the color preference experiment, we measured the time spent in one of four colored lights: Yellow, blue, green, and white. In the UV experiment, more than 98% of 3rd and 4th nymphs had a choice of UV (395 - 410 nm) and white light conditions in the T-maze. As a result, 91% individuals in the 1st nymph stage before the first foraging oriented toward the light conditions. And after 7 days, 93% in 1st nymph choose the light arm. But only 63% in 2nd nymph chose the light and light preference was decreased by days. It represents that light response of L. delicatula could change among instars. In the color preference experiment, more than 60% of L. delicatula in 3rd and 4th nymph chose blue light. In the UV experiment, more than 90% of 3rd and 4th nymphs preferred the UV light to the white light. This result is suggested that nymphs are sensitive to light and oriented toward shorter wave light such as blue and green.