• Title/Summary/Keyword: 매미

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Effects of Temperature on the Development of Gypsy moth (Lymantria dispar) (매미나방(Lymantria dispar) 발육에 미치는 온도의 영향)

  • A-Hae Cho;Hyo-Jeong Kim;Jin-Hee Lee;Ji-in Kim
    • Korean journal of applied entomology
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    • v.62 no.4
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    • pp.385-388
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    • 2023
  • Gypsy moth (Lymantria dispar), a polyphagous insect pest belonging to the family Lymantriidae, is widely distributed in Korea, Japan, Siberia, Europe, and North America. They pose a threat to various host plants including pear trees, apple trees, and blueberries. Traditionally considered a forest pest, the increasing incursion of gypsy moths into agricultural land near forested areas has intensified damage to crops lacking effective control methods. This study aimed to investigate the temperature-dependent development of gypsy moths to enhance outbreak prediction and advance technology development. The effects of temperature on development of each life stage were investigated under constant temperature conditions of 18, 21, 24, 27, 30, and 33℃ (14L:10D, RH 60±5%) utilizing egg masses collected in Jeollanam-do Jangheung-gun in 2021. The results revealed that higher temperatures accelerated the development rate of the gypsy moth larvae with optimal development occurring at 30℃. However, the survival rate was lowest at 33℃. At the favorable temperature of 30℃, the total development period was 43.8 days for females and 42.5 days for males. The developmental threshold temperature were 13.1℃ for females and 12.5℃ for males, with effective accumulated temperature of 641.1 DD and 657.8 DD, respectively.

Morphometric Analysis of Wing Variation of Lantern Fly, Lycorma delicatula from Northeast Asia (동북아시아 꽃매미 날개 변이의 형태계측학 분석)

  • Kim, Hyojoong
    • Korean journal of applied entomology
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    • v.52 no.4
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    • pp.265-271
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    • 2013
  • Morphometric analysis of Lycorma delicatula was performed to confirm whether local individuals had a geographical difference in their wing variations. The L. delicatula individuals were collected from 10 localities in Korea, China, and Japan, and 14 morphometric characteristics selected from the forewing were analyzed. The Korean individuals were similar to the ones from the northern area of the Yangtze River, but less similar to the others from the southern area of the Yangtze River. The individuals from Seoul and Buan were very similar to those from Shanghai. In case of wing spots, the individuals from Beijing had relatively small spots, while the ones from Linan had big spots. The Japanese individuals had a relatively large wing size.

Oviposition Behavior of Ooencyrtus kuvanae (Howard) (Hymenoptera : Encyrtidae), Egg Parasitoid of Lymantria dispar L. (Lepidoptera : Lymantriidae) (매미나방알좀벌, Ooencyrtus kuvanae (Hymenoptera : Encyrtidae)의 매미나방 난에 대한 산란행동)

  • 이해풍;이장훈
    • Korean journal of applied entomology
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    • v.28 no.4
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    • pp.221-228
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    • 1989
  • The oviposition behavior of Ooencyrtus kuvanae (Howard) (Hymenoptera: Encyridae) was examined in a small petri dish containing eggs of gypsy moth, Lymantrt'a dt'spar L. The behavioral sequence from initial searching movement toward the host egg through oviposition, departure, and auxiliary phase activities such as resting, glooming, and host feeding were described. Oviposition experience shortened the approach time to subsequent eggs. The time spent for contacting the host egg also decreased with oviposition experience. Oviposition experience may play an important role in host recognition and increasing oviposition efficiency.

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조경수의 병해충 - 최근 문제가 되고 있는 외래돌발해충

  • Go, Sang-Hyeon
    • Landscaping Tree
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    • s.147
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    • pp.38-42
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    • 2015
  • 최근 기후변화 개방화로 산림과 농경지 모두가 서식처인 외래종 꽃매미, 미국선녀벌레, 갈색날개매미충 등의 새로운 해충이 돌발적으로 발생하여 그 피해가 심각해지고 있다. 이 해충들은 흡즙성의 가해양상을 보이며 알로 월동하고 생활사가 유사하며 기주범위가 상당히 넓다는 공통적인 특징을 지니고 있다. 꽃매미의 유입 정착사례에서 보듯이 최근의 기후변화가 발생과 관련되어 있어 앞으로 수목과 농작물 모두에 피해가 우려되고 있는 실정이다. 특히 최근 온화한 겨울 기온과 봄철 이상기온으로 인해 알로 월동하는 해충들의 월동치사율이 감소하고 발생시기가 빨라질 것으로 예측되는 상황에서 이들 문제 해충의 생태 및 방제법에 대하여 간단히 소개하고자 한다.

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오갈병 발생 현황과 매개중에 관한 조사 연구

  • 김영택;백현준;정봉조
    • Journal of Sericultural and Entomological Science
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    • v.15 no.2
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    • pp.68.2-68
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    • 1973
  • 1. 오갈병은 전국에 분포하고 최근지역에 따라 3∼4배씩 매년 발생이 급증한다. 2. 마름무늬 매미충은 1년 3세대 발생하며 1세대가 5월중순-7월초순이고 2세대가 7월중순-8월중순이며 3세대는 8월하순부터 10월초까지였다. 3. 마름무늬 매미충 산란은 가지의 하부에 산란하는 것이 많다. 4. 마름무늬 매미 충 월동란은 4월 24일에 안점기에 달하고 5월 5일부터 부화 시작한다.

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긴급진단 - 꽃매미의 발생현황 및 방제대책

  • Lee, Sang-Gye
    • Life and Agrochemicals
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    • s.249
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    • pp.20-23
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    • 2009
  • 지구온난화에 따른 기후변화의 영향과 기주신물의 증가가 대발생 원인이다. 7월 중순 이후부터 꽃매미 성충이 인근 야산으로부터 지속적으로 이동해오므로 포도 수확 전까지 예찰을 철저히 하여 발생이 확인되면 지속적인 방제가 필요하다.

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Effect of Moisture Content of Pruned Blueberry and Peach Twigs on Hatchability of Ricania shantungensis (Hemiptera: Ricaniidae) Eggs (블루베리와 복숭아에서 전정가지 수분함량이 갈색날개매미충 알 부화에 미치는 영향)

  • Kim, Dong Hwan;Yang, Chang Yeol;Kim, Hyeong Hwan;Seo, Mi Hye;Yoon, Jung Beom
    • Korean journal of applied entomology
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    • v.56 no.4
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    • pp.357-363
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    • 2017
  • Hatchability of eggs and rate of weight reduction in pruned twigs with egg-mass of R. shantungensis were investigated in blueberry and peach orchards from December to March. Hatchability of R. shantungensis eggs were 52.8~68.4% on normal twigs in the field. However, the rate of hatchability dropped to less than 1% after pruning. Moisture content of twigs after pruning blueberry and peach were 9.8~20.9% and 7.5~13.8%, respectively. This result revealed that the hatchability of R. shantungensis eggs might be very low or nil, because the eggs dried up after pruning of the twigs with egg-masses of R. shantungensis.

Complete Mitochondrial Genome of the Gypsy Moth, Lymantria dispar (Lepidoptera: Erebidae) (매미나방의 미토콘드리아 게놈 분석)

  • Na Ra, Jeong;Youngwoo, Nam;Wonhoon, Lee
    • Korean journal of applied entomology
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    • v.61 no.3
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    • pp.507-512
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    • 2022
  • The Gypsy moth, Lymantria dispar (Linnaeus, 1758) (Lepidoptera: Erebidae) is a serious pest that attacks forest as well as fruit trees. We sequenced the 15,548 bp long complete mitochondrial genome (mitogenome) of this species. It consists of a typical set of genes (13 protein-coding genes, 2 rRNA genes, and 22 tRNA genes) and one major non-coding A + T-rich region. The orientation and gene order of the L. dispar mitogenome are identical to that of the ancestral type found in majority of the insects. Phylogenetic analyses using concatenated sequences of 13 PCGs and 2 rRNAs (13,568 bp including gaps) revealed that the L. dispar examined in our study, together with other geographical samples of L. dispar in a group forming the family Erebidae and consistently supported the monophyly of each family (Erebidae, Euteliidae, Noctuidae, Nolidae and Notodontidae), generally with the highest nodal supports.