• Title/Summary/Keyword: 잎벌레과

Search Result 50, Processing Time 0.028 seconds

Effects of Temperature on the Development and Reproduction of Phaedon brassicae Baly (Coleoptera: Chrysomelidae) (좁은가슴잎벌레의 발육과 생식에 미치는 온도의 영향)

  • Jeong Joon Ahn;Kwang Ho Kim;Hong Hyun Park;Gwan Seok Lee;Jeong Hwan Kim;In-Hong Jeong
    • Korean journal of applied entomology
    • /
    • v.62 no.4
    • /
    • pp.315-323
    • /
    • 2023
  • The brassica leaf beetle, Phaedon brassicae Baly (Coleoptera: Chrysomelidae), is one of the important pests infesting cruciferous vegetables. In order to understand the biological characteristics of the insect, we investigated the effects of temperature on development of each life stage, adult longevity and fecundity of P. brassicae at four constant temperatures of 15, 20, 25 and 27.5℃ for immature life stage and five constant different temperatures of 10, 15, 20, 25 and 27.5℃ for adult stage. Eggs and larvae successfully developed next life stage at temperature tested. The development period of egg, larva, and pupa decreased as temperature increased. Lower developmental threshold (LDT) and thermal constant (K) were calculated using linear regression as 8.7℃ and 344.73DD, respectively. Lower and higher threshold temperature (TL and TH) from egg to adult emergence were estimated by Briere function as 5.3℃ and 40.4℃, respectively. Adults produced eggs at the temperature range between 10℃ and 27.5℃, and showed an estimated maximum number, ca. 627.5 eggs at 21.7℃. Adult oviposition models including aging rate, age-specific survival rate, age-specific cumulative oviposition, and temperature-dependent fecundity were constructed. Temperature-dependent development models and adult oviposition models would be useful components to understand the population dynamics of P. brassicae and to establish the strategy of integrated pest management in cruciferous crops.

New record of Caliothrips tongi (Thysanoptera: Thripidae) in Korea (한국 미기록종 Caliothrips tongi (총채벌레목: 총채벌레과)에 대한 보고)

  • Lee, Gwan-Seok;Lee, Wonhoon
    • Korean journal of applied entomology
    • /
    • v.54 no.4
    • /
    • pp.449-454
    • /
    • 2015
  • A panchaetothripine species Caliothrips tongi Mound et al., 2011 is recorded in Korea for the first time. The species was previously known only from the southern China. C. tongi were widely collected from several regions of Korea, causing severe damage to the leaves of Lactuca indica L. (Compositae).

Gene Manipulation of Pin 2(Proteinase Inhibitor II) to the Cottonwood Leaf Beetle(Coleoptera : Chrysomelidae) in Transgenic Poplar(Populus deltodies × P. nigra) (형질전환(形質轉換)된 포플러의 딱정벌레에 대한 저항성(抵抗性) 유전자(遺傳子)(Proteinase Inhibitor II) 발현(發現))

  • Kang, Hoduck
    • Journal of Korean Society of Forest Science
    • /
    • v.86 no.4
    • /
    • pp.407-414
    • /
    • 1997
  • The resistance of a non-transgenic poplar clone, 'Ogy' and three transgenic poplar lines to the cottonwood leaf beetle, Chrysomela scripta F., was evaluated by in vitro feeding. The lines were transformed with neomycin phosphotransferase II(NPT II) as a selectable marker, proteinase inhibitor II(pin2) as a resistance gene, and CaMV 35S as a promoter. An efficient method of sterilizing the beetle eggs and introducing them into plant tissue cultures was developed. The resistance of the transgenic lines was investigated in terms of effects tin leaf area consumed, insect weight, insect developmental stages, and plantlet root dry weight after feeding. Also, leaf area consumed was examined by leaf age as measured through leaf plastochron index(LPI). The leaf area consumed and insect weight were highly significant between transformants and control, and insect development in vitro was significant among the transgenic lines. Larval infestation was the most severe around LPI 4 to 5 which were young leaves. The system provided a quick, highly controlled method to screen developing transgenic plantlets directly.

  • PDF

Effects of Minute Pirate Bug, Orius strigicollis (Hemiptera: Anthocoridae) on Control of Thrips on Hot Pepper in Greenhouse (하우스고추에서 Orius strigicollis Poppius를 이용한 총채벌레류 방제효과)

  • 송정흡;강상훈;이광석;한원탁
    • Korean journal of applied entomology
    • /
    • v.40 no.3
    • /
    • pp.253-258
    • /
    • 2001
  • Biological control of thrips with Orius strigicollis Poppius was evaluated in a hot pepper greenhouse. To study the biological control strategy of thrips on hot pepper grown in greenhouse, three plots were established: natural enemy removed plot(CNT), pesticide treated plot(PAT) and O. strigicollis released plot with no pesticide application (NRT). The nymphs of O. strigicollis were found on the leaves of lower stratum in CNT and NRT at 13 days after the first release. The density of thrips was suddenly dropped and maintained at low level since 15 day after transplanting in NRT. The densities of thrips on hot pepper flowers was also maintained at much less level in NRT than in CNT. The thrips and O. strigicollis, which were aggregated in flowers, may have resulted in improved predator searching. Average damage indices of CNT, PAT and NRT were 0.31, 0.05 and 0.08 and the percentage of damaged fruit were 80.0, 17.1 and 24.8% respectively. The damage index and percentage of damaged fruit of NRT was slightly higher than PAT, but very lower than CNT. The introduction of the adults of O. strigicollis, which was the biological control agent for the control of thrips, was effective on hot pepper.

  • PDF

Developmental Characteristics and Spatial Distribution of Mango Shield Scale, Protopulvinaria mangiferae (Green) (Homoptera : Coccidae) on Elaeocarpus sylvestris (Lour.) (담팔수깍지벌레의 충태별(蟲態別) 생육(生育) 특성(特性)과 수상분포양식(樹上分布樣式))

  • Kim, Jong-Kuk
    • Journal of Forest and Environmental Science
    • /
    • v.11 no.1
    • /
    • pp.40-49
    • /
    • 1995
  • This study was carried out to investigated the developmental characteristics and spatial distribution of mango shield scale, Protopulvinaria mangiferae injuring to Elaeocarpus sylvestris(Lour.) This mango shield scale is parthenogentic. The oviparous female have three larval stages and adult. This species has two generation a year. The crawlers of the 1st generation emerged from late may to middle July, and those of the 2nd generation from early August to early October. Their emergence reached its peak in early part of the occurrence period. The crawlers disperse from 10 to 14 o'clock from ventral side of the adult and more than 90% had settled with in 8 hours on the leaves of E. sylvestris. The larvae and adults were distributed contagiously between trees. The adult densities were higher in the lower part of the crown than those in the middle or upper parts. But differents in densities were not significant among four directions. The distribution of the adult scales per leaf cluster showed an aggregation with a slightly colonized pattern.

  • PDF

An Investigation and Evaluation of Insect Pests in Greenhouse Vegetables in Jeonbuk Province (전북지역 시설 채소류 작물별 해충 발생양상 및 종 동정)

  • Lim, Ju-Rak;Park, Sung-Hee;Moon, Hyung-Cheol;Kim, Ju;Choi, Dong-Chil;Hwang, Chang-Yeon;Lee, Kwan-Suk
    • Korean journal of applied entomology
    • /
    • v.51 no.3
    • /
    • pp.271-280
    • /
    • 2012
  • Twenty-two families and 39 species of insect pests were surveyed on five families and 20 species of greenhouse vegetables in Jeonbuk province. The species of insect pests and the families of plants infested were seven families and 10 species on Chenophodiaceae, 16 families and 25 species on Brassicaceae, nine families and 10 species on Apiaceae, six families seven species on Liliaceae, and 13 families and 29 species on Compositae. Spodoptera exigua H$\ddot{u}$bner and Spodoptera litura Fabricius occurred on all vegetables. Additionally, Frankliniella intonsa Trybom, Trialeurodes vaporariorum Westwood, Myzus persicae Sulzer, and Phytomyza horticola Goureau occurred on all vegetables except Liliaceae(Allium tuberosum Rottl. and Allium fistulosum L.). Thirteen species of insect pests including Hymenia recurvalis Fabricius occurred only one vegetables, indicating that they were monophagous. The main insect pests of Chenophodiaceae were M. persicae, H. recurvalis, S. exigua and S. litura whereas Dolycoris baccarum Linn$\acute{e}$, Trialeurodes vaporariorum Westwood, Trichoplusia ni H$\ddot{u}$bner, and P. horticola were not recorded. On Brassicaceae were Brevicoyne brassicae Linn$\acute{e}$, M. persicae, Phaedon brassicae Baly, Phyllotreta striolata Fabricius, Plutella xylostella Linn$\acute{e}$, Hellula undalis Fabricius, S. litura, Pieris rapae Linn$\acute{e}$, Artogeia rapae Linn$\acute{e}$, and Athalia rosae ruficornis Jakovlev, but six species including Frankliniella intonsa Trybom were not recorded. The degree of damage by insect pests on Apiaceae was low, five species including Tetranychus kanzawai kishida, F. intonsa, T. vaporariorum, S. litura, and P. horticola were not recorded. The main insect pests on Liliaceae were Thyatira tabaci Lindeman, Acrolepiopsis sapporensis Matsumura, S. exigua, and Liriomyza chinensis Kato. The damage to Compositae by insect pests was relatively low except that of S. litura.

Coleoptera from Kyeongiu National Park (경주 국립공원내 개발지구별 딱정벌레류의 분포에 관한 연구)

  • 박종균;안승락
    • The Korean Journal of Soil Zoology
    • /
    • v.5 no.2
    • /
    • pp.133-137
    • /
    • 2000
  • Community and distribution of Coleoptera were investigated in 4 different regional areas (Danseoksan, Tohamsan, Namsanm and Daebon) of Kyeougju National Park from June 17, 1997 to Oct. 30, 1997 by sweeping net method. 565 individuals belonging to 139 species, 115 genera in 30 families were collected. Species diversity was much higher in the areas of Tohamsan and Danseoksan (0.716 and 0.762, respectively) than the other areas because of the good plantation for the leaf beetles. In the family Chrysomelidae, Tohamsan area revealed very high Simpson diversity index, a 0.916. On the other way, Simpson diversity index was 0 in Daebon area which had very simple plantation with beach side and pine trees. Chrysomelidae was the most abundant; 270 individuals belonging to 45 species of 34 genera. Among them, Mordellina brunneotincta Marseul was the highest frequency. And then, the species of Coccinellidae, Alleculidae, Cerambycidae, Attelabidae and Curculionidae were mostly abundant in all regional area. Stigmatium pilosellum Gorham, Mordellina brunneotincta Marseul and Rhaphirtropis guttifer Sharp were newly recorded in Korea.

  • PDF

Evaluation of effectiveness and bioassay of insecticide residues of chlorfenapyr(ac303 630) against Thrips palmi Karny(Thysanoptera ; Thripidae) under laboratory and vinyl house conditions (오이총채벌레에 대한 클로르페나피르(AC303 630) 약효와 약효지속기간)

  • Park, Jong-Dae;Lee, Ho-Bum;Kim, Do-Ik;Kim, Seon-Gon;Song, Seong-Do
    • The Korean Journal of Pesticide Science
    • /
    • v.3 no.2
    • /
    • pp.69-73
    • /
    • 1999
  • The insecticidal activities and residues of chlorfenapyr [4-bromo-2-(4-chlorophenyl)-1-ethoxymethyl-5-trifluorornethyl pyrrole-3-carbonitrile] against Thrips palmi was evaluated under laboratory and vinyl house conditions. Effectiveness of chlorfenapyr against T. palmi on red pepper leaves was lasted for 9 days at a concentration of 50 ppm but there was no significant differences between emulsifiable concentration and wettable granule under laboratory conditions. In vinyl house, high toxicity was investigated at 6 hours after application of chlorfenapyr in a concentration of 50 and 100 ppm and insecticidal effect was maintained for 11days after 2 times weekly application in cucumber. Control effect was above 97% against T. palmi larva and larva+adults after 2 times weekly application in vinyl house.

  • PDF

Seasonal Development and Control of Parthenolecanium corni in Blueberry Shrubs (블루베리에 발생하는 말채나무공깍지벌레의 계절적 발육과 방제)

  • Lee, Seok-Min;Chung, Bu-Keun;Kang, Dong-Wan;Park, Kyung-Mi;Han, In-Young;Kwon, Jin-Hyeuk;Lee, Heung-Su
    • Korean journal of applied entomology
    • /
    • v.60 no.4
    • /
    • pp.403-415
    • /
    • 2021
  • Seasonal development of Parthenolecanium corni was observed from 4 Jun. 2019 (nymph) - 25 Jun. 2020 (1st Gen. nymph) in blueberry shrub in Sacheon city, Gyeongsangnam-do. To investigate their development, more than 5 twigs sprouted in 2018 were taken from the farm nearly weekly basis. The development of each scale were examined under the stereomicroscope and chemical control was conducted in the blueberry shrub with available three insecticides. The results on the development period and Centigrade Degree-Days accumulation (DDC) obtained are as follows: egg-laying period (peak): 12 -26 May 2020 (24 May)(DDC, 110.0-188.5 (173.6)); egg-hatching period (peak): 9 - 23 June 2020 (19 June)(DDC, 325.2-480.8(435.6); egg period: 26 days; nymph movement from overwintered adult to new leaves 16-25 June 2020 (DDC, 410,5-500.4); nymph movement from leaf to twig (peak) to become adult: 4-18 Feb. 2020 (8 Feb.). Eggs no. /adult (range): 956.8 ± 73.4 (13 - 3497). Size (mm) of egg, 0.29 ± 0.020(L), 0.15 ± 0.013(W); of egg-hatched nymph, 0.35 ± 0.018(L), 0.18 ± 0.007(W), 0.09 ± 0.007(eye distance); and of adult, 4.30 ± 0.893(L), 2.64 ± 0.520(W). The egg-hatched nymphs from the overwintered adult moved to the backside leaf of new shoot in which they found about 95% until leaf is falling by early February in next year. They overwintered as 2nd instar and occurred univoltine. For the control of the 1st instar crawler, three insecticides treated on 16 and 30 July at the registered dose for Ceroplastes japonicus. Acetamiprid 8WP showed 96.9% mortality at 21 days after 1st treatment.

Geographical Distribution and Host plants of Corythucha marmorata (Uhler) (Hemiptera: Tingidae) in Korea (해바라기방패벌레(Corythucha marmorata (Uhler)) (Hemiptera: Tingidae)의 발생지역 및 기주식물)

  • Kim, Dong Eon;Kil, Jihyon
    • Korean journal of applied entomology
    • /
    • v.53 no.2
    • /
    • pp.185-191
    • /
    • 2014
  • Corythucha marmorata (Uhler) belonging to the family Tingidae (Hemiptera) has been reported in Korea. In 2013, surveys were conducted to study its morphological characteristics, geographical distribution, and host plants. The adult is brown white and 2.77-3.28 mm in length, and the mature nymph is yellowish brown. Heavily infested trees appear yellowish white because they are fed on by the nymphs on the under surface of host plants. C. marmorata were found between early June and late October, and their numbers peaked in early July to late August. In 2013, the occurrence of C. marmorata was confirmed in 27 cities and counties nationwide, and 8 families and 24 species of host plants were identified. C. marmorata feeds on the following major host plants: Conyza canadensis, Aster pilosus, Helianthus annuus, Artemisia princeps, Rudbeckia bicolor, and Solanum melongena.