• Korean journal of applied entomology
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• v.57 no.3
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• pp.161-164
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• 2018

Pristiphora (Pristiphora) apricoti Zinovjev, 1993, pest of Prunus armeniaca var. ansu Max, belonging to Nematinae of Tenthredinidae is newly recognized in South Korea. The host plant is recorded for the first time from South Korea. Diagnosis, rearing notes, and photographs of the diagnostic characters and oviposition are provided.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2000.10b
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• pp.58-61
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• 2000

장미는 우리나라 5대 화훼작목 중의 하나로 농가의 주요소득원이다. 최근에는 장미재배온실의 대형화, 단지화와 함께 연중 절화를 생산하는 온실이 늘어남에 따라 횐가루병, 노균병, 총채벌레, 응애 등 각종 병해충 발생문제가 대두되고 있다. 특히 장미에서 문제되는 해충은 꽃노랑총채 벌레 (Frankliniella occidentalis), 점박이응애(Tetranychus urticae) 등으로 이들 해충은 발생초기에 발견이 어렵고 약제에 의한 방제효과가 낮으며 장미에 등록되어 있는 약제용 약제가 제한되어 있어 효과적인 방제가 이루어지지 못하고 있다. (중략)

• Korean journal of applied entomology
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• v.47 no.4
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• pp.345-352
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• 2008

The seasonal occurrence of insect pests in watermelon cultivated in greenhouses was surveyed in Gochang from 2006 to 2007 considering three seasonal types of culture: forcing culture, semi-forcing culture and retarding culture. Aphis gossypii, mites (Tetranychus urticae+T. kanzawai) and Palpita indica were the most serious pest species in watermelon greenhouse culture. A. gossypii and mites showed high density during the months of June and September in semi-forcing and retarding culture, respectively. Palpita indica was observed only in retarding culture. Leaf damage by Palpita indica was observed from the middle of August and peaked to 79.4% damage in the middle of September. Thrips and whiteflies were captured in high density by the yellow sticky trap in semi-forcing culture and retarding culture but these insects showed low population density in watermelon leaves.

• Korean journal of applied entomology
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• v.61 no.2
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• pp.299-305
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• 2022

We investigated the occurrence and damage information of 9 species (7 families) of insect pests in two places of rucola (Eruca sativa Mill.) cultivated houses in Gyeonggi Province from 2019 to 2021, and selected five insecticides that could efficiently control the beet armyworm, Spodoptera exigua. Five insecticides (spineram SC, fluxametamide EC, chlorantraniliprole WG, cyantraniliprole DC, and emamectin benzoate EC) showed high control effects over 95% against 3^rd instar larvae of S. exigua at the two places of rucola cultivation, and there was no phytotoxicity at double dose of concentration.

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2001.05a
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• pp.69-69
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• 2001

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2004.05a
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• pp.174-174
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• 2004

• Korean journal of applied entomology
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• v.27 no.2
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• pp.117-124
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• 1988

An Investigation of insect pests in rice stored was carried out in Jeonnam region of Korea. The total of 2 class, 7 orders 16 families and 25 species were recorded in Lepidoptera; 8, Coleoptera; 11, Orthoptera; 1, Thysanura 1, blattaria; 2, Hymenoptera; 1 and mites; 2 spe-cies. The important species among them were Sitotroga cerealella, Ephestia cautella, Paral-ipsa gularis, Poldia, in Lepidoptera, and Sitophilus orzae, Oryzaephilus surianmensis, Cryptolestes ferrugineus, Tribolium castaneum, Tenebroides mauritanicus, Attagenus japonicus, in Coleoptera and Blatella germanica, in Blattaria and Acarus siro Petrobia latens, in mites. The duration of maximum occurrence were the late June to mid July for Sitotroga cerealella, the mod July to early August for Oryzaephilus surianmensis the mid July to August for Tribolium castaneum, the early July to late July for Sitophilus orzae, the mid June to early July for Attagenus japonicus the mid June to late Spetember for Blatella germanica and the late April to late May for Acarus siro and Petrobia latens, respectively in investigation, Blatella germanica(Blattaria) which was no problem in stored rice insect till now was mainly distributed a coastal plain and period of occurrence was long amount of occurrence was great. Rice weevil has 4 generations under natural conditions and the peak of 1st perood time was ranged from middle of jun. to last decade of Jun., 2nd period was from the lats decade of Jul. to first decade of Aug., 3rd period was from middle of Sep. to late Sep., 4th period was middle of Oct. to early Nov.

• Korean journal of applied entomology
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• v.42 no.1
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• pp.57-63
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• 2003

Accurate forecasting of occurrence time and abundance of insect pests is essential for developing technology of integrated pest management system. Digital image processing algorithms were utilized to automatically recognize rice planthoppers which are major insect pests in the rice cultivation field and were subsequently used to estimate densities in the field for efficient forecasting of insect pests. To the images taken in the rice field, image decomposition, top-hat transformation, threshold, and minimum and maximum filter were implemented for patterning individually the brown planthopper specimens attached at the bottom area of rice stems. In average 95.8cio of images were correctly recognized for estimating densities by the developed system, and the recognition rate was higher than that obtained from direct observations by experienced observers. Furthermore, the size of the recognized specimens was measured and was used for estimating the age structure in the observed brown planthopper populations.

• Korean journal of applied entomology
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• v.61 no.1
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• pp.63-75
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• 2022

Semiochemicals including pheromone are chemicals used in chemical communication of insect. Semiochemicals have been widely used for population monitoring, mass trapping, and mating disruption of insect pest. In this review article, the current status of pheromone research of major forest insect pest in Korea such as Monochamus alternauts, M. saltuarius, Matsucoccus thunbergianae, Platypus koryoensis, Glyphodes perspectalis, Dioryctria abietella, Lymantria dispar, Synanthedon bicingulata, and Naxa seriaria was introduced, and the results were compared with those reported in other countries. Based on the analysis of current pheromone research of forest insect pests, future studies and development direction was suggested.

• Korean journal of applied entomology
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• v.53 no.3
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• pp.231-237
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• 2014

This study was carried out to investigate the pest species and their damage on Asparagus officinalis. Field surveys were conducted in asparagus greenhouse in Jeju, for four years from 2007 to 2010. Total of 16 pest species belonging to 5 orders were found as follows: Thrips tabaci, Thrips hawaiiensis, Adoxophyes honmai, Spodoptera litura, Spodoptera exigua, Helicoverpa armigera, Mamestra brassicae, Ascotis selenaria, Ectropis excellens, Geisha distinctissima, Aphis gossypii, Myzus persicae, Anomala albopilosa, Crioceris quatuordecimpunctata, Acusta despecta sieboldiana and Deroceras reticulatum. Among them, T. tabaci frequently occurred and damaged asparagus plants during the whole growing seasons. C. quatuordecimpunctata and snails caused severe damages on asparagus shoots in spring harvest season. In mid-late seasons, aphids and lepidopteran species occurred and attacked asparagus plants. Of the lepidopteran pests, S. litura, S exigua and H. armigera belonging to Noctuidae occurred moderately and fed on asparagus plants. And the pest control strategy in asparagus cultivation was discussed based on the present results.