• Title/Summary/Keyword: Agrotis ipsilon

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Convenient Bioassay Method and Insecticidal Susceptibility of the Black Cutworm, Agrotis ipsilon (Hufnagel) (Lepidoptera: Noctuidae) (검거세미밤나방(Agrotis ipsilon )의 간이생물검정법에 의한 약제 감수성)

  • Lee, Young Su;Lee, Hyun Ju;Choi, Jong Yoon;Lee, Sang-Woo;Lee, Young Soon;Lee, Hee A
    • Korean journal of applied entomology
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    • v.60 no.2
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    • pp.201-202
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    • 2021
  • We confirmed the convenient bioassay method for the black cutworm, Agrotis ipsilon in semi-field conditions. And we surveyed the susceptibility to commercial pesticides of A. ipsilon, which feeds Chinese cabbage through this bioassay process. As a result of the test, six soil mixing insecticides and eight soil drenching insecticides showed more than 90% insecticidal activity.

Insect Pests in Turf Sod Production Areas in Korea (잔디 재배지 발생 해충 종류)

  • Lee, Chae Min;Kwon, Oh-Gyung;Lee, Kwang-Su;Lee, Sang-Myeong;Choi, Sunghwan;Lee, Dong Woon
    • Weed & Turfgrass Science
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    • v.3 no.2
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    • pp.114-120
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    • 2014
  • Turfgrass insect pests were investigated in different turf sod production areas of Korea. Twelve insect pest species of 7 families in 6 orders and one Eriophyidae mite, Aceria zoysiae were collected from turf sod production areas. The zoysiagrass mite was most frequently occurred zoysiagrass sod production areas. Damaged rate by zoysiagrass mite was increased from May to September. Noctuidae (Spodoptera depravata, Agrotis ipsilon and A. segetum) and Pyralidae (Crambus sp.) insect pests in Lepidoptera were attracted in A. ipsilon sex pheromone trap. Eggs and larva of A. ipsilon was the highest occurred August. Zoysiagrass mite and A. ipsilon were main insect pests in turf sod production areas in Korea.

Effect of Essential Oils and Paraffin Oil on Black Cutworm, Agrotis ipsilon (Lepidoptera: Noctuidae) (식물정유와 파라핀오일이 검거세미나방에 미치는 영향)

  • Lee, Dong Woon;Potter, D.A.
    • Weed & Turfgrass Science
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    • v.2 no.1
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    • pp.62-69
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    • 2013
  • The black cutworm, Agrotis ipsilon (Hufnagel), damages various cultivated crops and it can also be a serious pest of turfgrass, especially on golf courses. Essential oils have potential as alternative control agents for insect pests. Sixteen essential oils (anise, camphor, cinnamon, citronella, clove, fennel, geranium, lavender, lemongrass, linseed, neem, peppermint, pine, thyme, turpentine and tea saponin) and paraffin oil were assessed in the laboratory, the green house and field trials for their efficacy against black cutworms in turf. Treatment of potted cores of perennial ryegrass turf with anise, cinnamon, neem, paraffin or turpentine reduced black cutworm damage in a greenhouse trial, and in a similar trial, applying neem oil at 4000, 2000 and 1000 ppm resulted in 100, 100 and 64% mortality, respectively, of black cutworms. Weight of survivors at the 1000 ppm rate was 5- fold less than weight of comparably-aged controls. Neem oil (2000 ppm) reduced growth of black cutworms feeding on treated clippings. A high rate of neem oil followed by irrigation (0.1 L of 20000 ppm neem oil with 0.9 L watering/$m^2$) was more effective than a lower concentration (1 L of 2000 ppm neem oil/$m^2$) against $2^{nd}$ and $3^{rd}$ instars in potted turf cores and field plots, respectively. However, not even the aforementioned higher rate effectively controlled $4^{th}$ instars in the field.

Biological Control of the Black Cutworm, Agrotis ipsilon (Lepidoptera: Noctuidae) with the Korean Entomopathogenic Nematode, Steinernema carpocapsae GSN1 Strain (Rhabditida: Steinernematidae) in Turfgrasses (잔디에서 한국산 곤충병원성선충, Steinernema carpocapsae GSN1 계통을 이용한 검거세미나방의 생물적 방제)

  • Lee, Dong Woon;Potter, Daniel A.
    • Weed & Turfgrass Science
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    • v.4 no.1
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    • pp.58-64
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    • 2015
  • The black cutworm, Agrotis ipsilon (Hufnagel) is a major insect pest of economic crops including turfgrasses on golf courses. The entomopathogenic nematode, Steinernema carpocapsae GSN1 strain (ScG), a Korean isolate, is an effective biological control agent for soil dwelling and greenhouse insect pests in Korea. In addition, ScG is commercially produced in Korea. We conducted laboratory, greenhouse, and field trials to evaluate efficacy of ScG against black cutworms in turfgrasses. A rate of 63 infective juveniles (Ijs) per larva killed >90% of $3^{rd}$ instars feeding in cups of artificial diet within 3 days. In greenhouse trials against cutworms feeding in pots of turfgrass, efficacy of ScG was higher against $4^{th}$ instars than against $2^{nd}$ instars (90.0 vs 81.2% mortality, respectively, at $2,000Ijs\;pot^{-1}$) in perennial ryegrass, and higher against $3^{rd}$ instars in creeping bentgrass, Agrostis palustris than in zoysiagrass, Zoysia japonica (96.7 vs 52.5% mortality at $100,000Ijs\;m^{-2}$) in pot. The corrected mortality of $4^{th}$ instar was 79.9% at the rate of $100,000Ijs\;m^{-2}$ in the creeping bentgrass in the field. So ScG could be used as biological control agent against black cutworm in turfgrass of golf courses.

The Abundance and Damaging Period of the 'Dark grey cutworm' (Agrotis tokionis B.) (숯검은밤나방유충의 발생과 가해기에 관한 연구)

  • Kim S.S.;Boo K.S.;Oh M.H.;Sohn J.S.
    • Korean journal of applied entomology
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    • v.20 no.3
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    • pp.168-172
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    • 1981
  • This work was carried out to study field biology of Agrotis tekienis B. in Korea for two years (1979 and 1980), The species was found to be the dominant species among cutworms giving damage to young Plants in Spring with making up approximately $80\%$ or more of cutworms collected at Suweon and Jeonju from March to early June. During April and May which is the most critical period as far as plant damage by cutworms is concerned, those of A. tokionis larvae collected were at 5th and 6th instar. A. tokionis larvae enter a summer diapause from late May to early July and Agrotis ipsilon became the dominant species. It is also suggested that A. tokionis larvae be called as the 'dark grey cutworm', based upon its larval body color.

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Damage and Control of Cutworms in the Tobacco Fields (담배포장에서의 거세미나방류 피해 및 방제)

  • 김기황;오명희;김정화;백종운
    • Korean journal of applied entomology
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    • v.40 no.4
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    • pp.315-319
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    • 2001
  • Damage and control of cutworms in the tobacco fields were studied during 1998~2000. It was estimated by surveys on cutworm damage that control measures should be taken for 9.0~10.2% of the surveyed fields. However, most of the interviewed growers broadcasted granule insecticides before or during tobacco plant transplantation. The damaging period and cutworm behavior suggested that the most effective control method would be the application of emulsifiable concentrate or wettable powder around the base of tobacco plants in the fields showing more than ca. 2% of damage ratio.

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Survey on the Kinds of the Fruit Sucking Moths and their Damages in Korea(1) (과실흡아류의 종류와 피해에 관한 조사연구(1))

  • Lee Seung Chan;Yoo Jae Ki;Yoo Chang Young
    • Korean journal of applied entomology
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    • v.9 no.1
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    • pp.37-41
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    • 1970
  • The great damage to the mature fruits in the orchard caused by the fruit sucking moths including unidentified species, is a troublesome problem in recent years in Korea. The present survey is, there-fort, carried out to clarify the ecological characters, especially kinds of these harmful moths and their damage at Suwon and Jinju fruit growing areas, in order to establish the foundation of the control. Some results obtained through the survey are as follows: It is investigated that the most noticeable group of these noxious moths, identified 10 species, belongs to subfamily Catocalinae of the family Noctuidae. Although there was already recorded as the harmful moths on the fruits such 4 species as Oraesia excavata B. Adris tyrannus amurensis S., Calpe thalictri B. and Dermaleipa juno Delman, it is additionally identified to be 6 species in 1968 including Oraesia emarginata F.,O. lata B., Agrotis ipsilon H., Chrysorithrum amatum Bremer et Grey, Dinumma deponens W. and Trachea atriplicis L. of the fruit sucking moths in Korea. Of all these noxious moths damaged, O. excavata is the most harmful, following by O. emarginata and Adris tyrannus. The fruit sucking moths attack on all kinds of mature fruits from early summer to late fall and behave entirely nocturnal. The damage ratio in percentage of these moths is $8.9\%$ on grape in Suwon, and $3.4\%$ on pears in Jinju.

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Moth (Lepidoptera) Fauna of Golf Courses in Jinju, Gyeongsangnamdo, Korea (경남 진주지역 골프장의 나방상 연구)

  • Kim, Jong-Ju;Lee, Suk-Jun;Jung, Young-Hak;Lee, Sang-Myeong;Choo, Ho-Yul;Lee, Dong-Woon
    • Asian Journal of Turfgrass Science
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    • v.25 no.1
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    • pp.30-42
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    • 2011
  • Moths were collected to survey turfgrass pest and to compare species diversity from Jinju Country Club in Jinju, Gyeongsangnamdo, Korea, every 10 days using 200W mercury light trap from middle May to late October in 2008. As the results, only 23 individuals of Pseudaletia separata, Spodoptera depravata, Spodoptera litura, Agrotis segetum, and Agrotis ipsilon were collected as turf grass insect pests. However, 2028 individuals of 388 species in 22 families were collected in total. Dominant species was Culcula panterinaria, Fentonia ocypete, Hypsopygia regina, Culcula panterinaria, Flavocrambus striatellus, and Diarsia camescens in May, June, July, August, September and October, respectively. Species diversity was not different between two surveyed sites, but different among surveyed time. Species richness was more higher in hole 11 (Hole was surrounded by natural forest and located near pond) than hole 15 (Hole was located at the top part of mountain). Dominance index of moth was increased from October compared with diverse index and richness index were decreased from October. A large number of species and individuals were recorded in Noctuidae (502 individuals in 131 species), Geometridae (491 individuals in 84 species), Pyralidae (386 individuals in 73 species), and Notodontidae (277 individuals in 25 species). These four families were 80.9% out of all the collected species.