• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.4 no.8
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• pp.64-74
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• 1983

• Korean journal of applied entomology
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• v.51 no.4
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• pp.405-410
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• 2012

This study is conducted to develop a new method of early occurrence monitoring for Aculops lycopersici Massee (Acari: Eriophyidae), a major pest in tomato. A. lycopersici causes damage to plants such as curling of leaflet edges, followed by leaflet bronzing. As feeding continues by the mites, the plant takes on a russeted, wilted appearance, eventually culminating in leaflet desiccation and finally plant death. Fruit damages in tomato were shown when the density of mites was very high. Also, A. lycopersici caused more damage to unripe fruits than ripe fruits. The time taken to detect A. lycopersici on green label sticker was 7.0 seconds, the shortest. Blue, orange and white label stickers took 17.1, 19.8 and 12.3 seconds respectively. The permeable microscope with side illumination was useful in observing A. lycopersici on label stickers. A. lycopersici began to occur in late-April and the density of the mites increased rapidly after mid-May. The density peaked in mid to late-June, and decreased after late-June. A. lycopersici was observed on lower stems 20 days after the release of mites and observed on higher stems 60 days after. The peaked densities were observed on stems 40 and 60 days after and on leaf 80 days after. The label sticker is enough to monitor early occurrence of A. lycopersici in tomato cultivation facilities.

• Korean journal of applied entomology
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• v.41 no.4
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• pp.255-261
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• 2002

Tomato russet mite, Aculops lycopersici Massee (Acari. Eriophyidae) was recorded in Korea and their SEM observations, distribution, host range, development on different temperature, and chemical control method were studied. Tomato russet mite is a microscopic animal (134.9 $\mu\textrm{m}$) with 2 pairs of legs which had 4 rays of feathered craw. Infected leaf turn reddish brown, stem loss hair, become shiny or surface cross-cracked, and shoot wilted or shrunk. Surface of fruit around fruit stalk appeared rusted or cross-cracked. It was found in glass greenhouse at Buyeo and Yuseong in Chungnam Province, Pyeongchang in Gangwon Province, and Chilgok and Guryongpo in Gyeongbuk Province. Convolvulus, black nightshade, chinese lanternplant, eggp1ant, morning glory, petunia, potato, pepper, tobacco and tomato were confirmed as a host plant in inoculation test. It could develop at temperature around $15-30^{\circ}C$, it took 6-11 days from eggs to adult, higher temperature shorten its life cycle. Female lived longer than male and it lived as long as 12 days at 25-28"C. Among acaricides tested, fenazaquin and cypermethrin were most effective.tive.

• Korean journal of applied entomology
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• v.38 no.1
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• pp.19-21
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• 1999

Eriophyid mites, Phyllocoptes pyrivagrans Kadono, 1985 on pear are described and illustrated in korea for the first time.

• Life and Agrochemicals
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• s.311
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• pp.19-21
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• 2015

• Korean journal of applied entomology
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• v.42 no.3
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• pp.185-195
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• 2003

Phytoseiid mites are important predators of spider mites, rust mites and many of insect pests as well. From two-year (2001-2002) survey of apple orchards in Kyoungbuk and Suwon area, 13 species of phytoseiids, 12 species of the genus Amblyseius and one species of the genus Typhlodromus were found. Among them, Amblyseius womersleyi was the most dominant followed by A. rademacheri, A. orientalis, and A. makuwa. Amblyseius rademacheri and A. makuwa were mainly found from ground vegetation. Keys to genera and species were presented with some pictorial details and ecological notes of each species. Further discussion on systematics of the family Phytoseiidae and use in apple IPM were suggested.

• The Korean Journal of Soil Zoology
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• v.9 no.1_2
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• pp.24-28
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• 2004

Predaceous phytoseiid mites can be important components in integrated mite management program including bio-logical control of spider mites. While conducting population study of prey-predator system in pear orchards, 6 predaceous phytoseiids were found. Amblyseius womersleyi, A. eharai, A. kokufuensi and A. finlandicus were mostly found from tree canopy. While A. rademacheri was restricted in ground vegetation, A. makuwa was equally distributed in ground vegetation and tree trunk. Some ecological information for each species was reviewed. Strate-gies for their potential utility in pest management program and future study area were discussed.

• Korean journal of applied entomology
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• v.55 no.3
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• pp.277-283
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• 2016

The first occurrence of the tomato russet mite, Aculops lycopersici Massee was in mid-late April, and the maximum occurrence was in mid-late June in 2013 and 2014. However, in 2015, the density of tomato russet mites increased in July. This pattern is thought to be attributed to temperature fluctuations, in which, low temperatures at night promoted their reproduction and long periods of high temperatures during the day promoted their dispersion. Comparison of the use of 11 Eco-friendly organic insecticides (EOIs) showed that, the mortality rates after application of 0.6% matrin(EOIMa) and 10% clove oil (EOICo) were 92.1% and 95.1%, respectively, when administered at 500-fold diluted concentrations. At 1,000-fold and 2,000-fold diluted concentrations, the mortality rates of EOIMa were 90.4% and 88.2%, respectively. In a field test, the mortality rates of EOIMa at the 1,000-fold diluted concentration and of EOICo at the 500-fold diluted concentration were 91.5% and 93.9%, respectively. In conclusion, theses two EOIs are sufficient to replace pesticides, and EOIMa seems to be particularly useful as a prophylactic given that it induced a mortality rate of 88.2% at a 2,000-fold diluted concentration.

• Korean journal of applied entomology
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• v.51 no.1
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• pp.1-7
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• 2012

Silver-grey or dark brown scaring, or dark brown discolored damages caused by the yellow tea thrip, $Scirtothrips$ $dorsalis$ Hood (Thysanoptera: Thripidae) have occurred on citrus fruits cultivated in the open field in east-south area orchards of Jeju Island since 2007. The weekly population of yellow tea thrips adults caught with a yellow sticky trap increased gradually from early May and peaked in late August, 2009. In 2010 and 2011, the most population was in early October. The yellow tea thrips of some species usually dominated from July in open citrus fields, and seven generations, at least, had occurred from May to late October 2009 by a yellow sticky trap survey. In 2009, $S.$ $dorsalis$ larva were observed from July and with peaks from late August to mid September and early October on citrus fruits. The damage symptoms appeared in the mid September. In 2011, the population peaks were in early July and late September, and the symptoms increased continually from mid July to late October. The symptoms were silver-scars or initial dark discolorations and then gradually changed to dark-brown discolorations or dark-brown scars. The percent of damaged fruits were 0.9%, 0.4%, 0.8% and 2.7% in 2008, 2009, 2010 and 2011, respectively, by survey in 64 typical orchards in Jeju Island. We are the first to report symptoms of the yellow tea thrip ($Scirtothrips$ $dotsalis$) on citrus fruits.