Control Thresholds for Managing Common Cutworm, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) on Chinese Cabbage

Choi, Duck-Soo; Kim, Do-Ik; Kim, Seon-Gon; Ko, Suk-Ju; Kang, Beom-Ryong; Kim, Sang Soo

doi:10.5656/ksae.2011.07.034

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…흰띠명나방은 명아주과, 비 름과(Amaranthaceae), 백합과(Liliaceae) 등을 가해하고, 특 히 명아주과 엽채류인 시금치, 근대, 비트 등의 작물에서 피 해가 크지만 (Bae and Paek, 2006 (Lee et al, 2006). 엽채류 경제적 피해수준과 관련하여 배추 담배거세 미나방은 유충밀도와 수량감소율과의 관계식으로 수량 5% 를 경감시키는 밀도는 정식초기는 2.9마리/100주, 정식중기 는 5.6마리/100주로 보고된 바 있다 (Choi et al, 2011 6.5마리였다 (Fig. 3).…”

Section: 김 주·최인영·이상구·임주락·이장호·정성수·이상계unclassified

Economic Injury Levels of Spoladea recurvalis on Beet in the Plastic Greenhouse

Choi¹,

Lee²,

Lim³

et al. 2014

The Korean Journal of Pesticide Science

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This study was carried out to determine the economic injury level and economic threshold level on beet (Beta vulgaris L.) infested with Spoladea recurvalis in the plastic greenhouse condition in 2010. The second instar larvae of S. recurvalis were inoculated with 7 different density levels on the each 10 beet plants as a replication. Injury levels of beet leaves and density of S. recurvalis were increased with the inoculation density of S. recurvalis. However, yield and marketable commodity of beet were decreased. Linear relationship between the percent yield reduction (Y) of beet leaves and different infestation densities of S. recurvalis (X) was estimated by the following equation Y = 1.226x + 3.36. Based on the relationships between the densities of S. recurvalis larvae and yield index of beet leaves, the number of second instar larvae which caused 5% loss of yield, economic threshold level was estimated as 1.1 larvae/10 plants for the planting 10 days. The percent yield reduction (Y) of beet roots infested with different densities of S. recurvalis (X) estimated by the following equation Y = 1.537x + 1.4634 after inoculation for 10 days at 3rd harvesting of leaves. Based on the relationships between the densities of S. recurvalis larvae and yield index of beet roots, the number of second instar larvae which caused 5% loss of yield, economic threshold level was estimated as 6.4 larvae/10 plants for the planting 10 days.

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Section: 김 주·최인영·이상구·임주락·이장호·정성수·이상계unclassified

Economic Injury Levels of Spoladea recurvalis on Beet in the Plastic Greenhouse

Choi¹,

Lee²,

Lim³

et al. 2014

The Korean Journal of Pesticide Science

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“…벼룩잎벌레(Phyllotreta striolata)는 딱정벌레목(Coleoptera) 잎벌레과(Chrysomelidae)에 속하며, 주로 배추, 무와 같은 십 자화과 식물을 가해하는 세계적으로 중요한 해충이다 (Bain and LeSage, 1998;Burgess, 1977;Lamb, 1984;Milliron, 1953;Soroka, 2009). 벼룩잎벌레에 의한 십자화과 작물의 피해는 어 린 묘일수록 피해가 많고 (Bracken and Bucher, 1986) (Stobbs, 1998 서 (Stern et al, 1959;Pedigo et al, 1986 (Choi et al, 2011), 파밤나방 (Kim et al, 2009), 배추흰나 비 (Kwon et al, 2008), 복숭아혹진딧물 (Jeon et al, 2008 Literature Cited…”

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Economic Injury Level of the Striped Cabbage Flea Beetle, Phyllotreta striolata (Coleoptera: Chrysomelidae), on Chinese Cabbage

Lee¹,

Kim²,

Hong³

et al. 2014

Korean journal of applied entomology

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This study was conducted to determine the economic injury levels and control thresholds for the striped cabbage flea beetle, Phyllotreta striolata (Coleoptera: Chrysomelidae), on Chinese cabbage at two different planting times. The number of inoculated adults per 10 cabbages was 0, 2, 4, 8, and 16 at the early developmental stage of the cabbage5 days after planting) and 0, 10, 20, 30, and 40 at the middle developmental stage (30 days after planting). Damages to the leaves at the first inoculation were 2.5-21.1% and at the second inoculation were 1.8-26.3% after harvesting. The linear relationships between population density and yield reduction were as follows: Y = 1.3475X + 2.135 (R 2 = 0.8699) at the early developmental stage and Y = 0.703X -1.78 (R 2 = 0.966) at the middle developmental stage. On the basis of these results, the economic injury levels caused 5% loss of yield; there were 2.1 adults per 10 Chinese cabbage at the early developmental stage and 9.6 adults per 10 Chinese cabbage at the middle developmental stage.

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Effect of climate change on the potential distribution of the common cutworm (Spodoptera litura) in South Korea

Jung

Byeon

Jung

et al. 2019

Entomological Research

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Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae), known as common cutworm, is a worldwide pest that causes severe damage to various crops and vegetables in South Korea. In this study, we predicted the potential distribution of S. litura in South Korea in a climate change scenario by applying species distribution modeling. We used the CLIMEX software as a main tool and determined optimal parameter values to simulate the current distribution of S. litura in Asia. We then used these parameter values to predict the species' future distribution in South Korea. As a result, we prepared maps indicating areas with suitable climate for S. litura and showed that these areas gradually increased as a result of climate change. Approximately 98% of the areas in South Korea were predicted to have a favorable climate for S. litura in 2100; 63.2% of the area in South Korea is currently favorable. To the best of our knowledge, this is the first study to predict the potential distribution of S. litura in South Korea, and it provides the basic data necessary to establish an optimal control strategy of this species.

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Control Thresholds for Managing Common Cutworm, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) on Chinese Cabbage

Cited by 4 publications

References 9 publications

Economic Injury Levels of Spoladea recurvalis on Beet in the Plastic Greenhouse

Economic Injury Levels of Spoladea recurvalis on Beet in the Plastic Greenhouse

Economic Injury Level of the Striped Cabbage Flea Beetle, Phyllotreta striolata (Coleoptera: Chrysomelidae), on Chinese Cabbage

Effect of climate change on the potential distribution of the common cutworm (Spodoptera litura) in South Korea

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