• Title/Summary/Keyword: 포장방제가

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벼 물바구미의 방제를 위한 곤충 병원성 선충 및 공생박테리아의 야외포장시험

  • Park, Seon-Ho;Park, Jae-Seong;Jo, Han-Gyu;Nam, Min-Hui;Park, No-Bong;Im, Sang-Jong
    • 한국생물공학회:학술대회논문집
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    • 2001.11a
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    • pp.914-917
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    • 2001
  • The rice water weevil, Lissorhoptrus oryzophillus are major pests of aquatic rice plant throughout the country. In field, we examined efficacy of Steinernema carpocapsae and Xenorhabdus nematophilus against rice water weevil, Lissorhoptrus oryzophilus. Steinernema carpocapsae showed 71-74.2% mortality after 15days in the field. Also symbiotic bacteria Xenorhabdus nematophilus isolated from Steinernema carpocapsae showed 33.3-58.3% mortality after 15days at vat against rice water weevil, Lissorhoptrus oryzophilus.

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Control Efficacy of Several Pesticides against Asian Corn Borer, Ostrinia furnacalis, in Job's Tears Fields (율무에서 조명나방에 대한 몇 가지 살충제의 포장 방제효과)

  • Lee, Young Su;Jung, Jin Kyo;Jang, Jung Hee;Kim, So-Hee;Choi, Jong Yoon;Lee, Hyun Ju;Lee, Sang-Woo;Lee, Young Soon
    • Korean journal of applied entomology
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    • v.61 no.1
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    • pp.275-281
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    • 2022
  • We investigated the occurrence pattern of the Asian Corn Borer, Ostrinia furnacalis in job's tears, and we tested the field control effects of 5 insecticides and 3 eco-friendly materials. Adults of O. furnacalis began to occur in May and have passed three generations until the end of October. As results of the field test, five insecticides (novaluron, lufenuron, spinetoram, cyclaniliprole, flufenoxuron) and three eco-friendly materials (gosam extracts 90%, neem extracts 60%, citronella oil 30 + derris extracts 20 + cinnamon extracts 10%) showed high control effects against O. furnacalis in two different areas, and no phytotoxicity even at double dose of pesticides.

Control Activities of Natural Compound, TGR-N1, against Turfgrass Fungal Diseases in vitro and in Field (식물유래 천연물, TGR-N1의 잔디 진균병에 대한 방제효과 검정)

  • Kim, Jeong-Nam;Kim, In-Seob;Geon, Min-Goo;Park, Deak-Hoon
    • Asian Journal of Turfgrass Science
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    • v.20 no.1
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    • pp.57-63
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    • 2006
  • This study was carried out to investigate control efficacy of natural compound, TGR-N1 against turfgrass fungal diseases. TGR-N1 showed antimicrobial activity in vitro. Rhizoctonia solani AG 1-1, Rhizoctonia solani AG2-2, Rhizoctonia cerealis, Sclerotinia homoeocarpa and Colletotrichum graminicola were inhibited by 500 times and 1,000 times of diluents of TGR-N1. Pythium spp. was not inhibited by the same diluents of TGR-N1. The TGR-N1 also showed a remarkable antifungal activity against Rhizoctonia solani AG 1-1, Rhizoctonia solani AG2-2 in field. This study proved the antifungal activity of natural compound, TGR-N1 and showed its potential as a natural pesticide.

Controlling Effect of Some Plant Extracts on Pathogenic Fungi and Pest of Rice (몇 가지 식물추출물의 벼 병해충 방제 효과)

  • Hwang, Ki-Cheol;Shin, So-Hee;Chung, Nam-Jin
    • Korean Journal of Organic Agriculture
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    • v.22 no.2
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    • pp.269-280
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    • 2014
  • This study was performed to test the insecticidal and antimicrobial activity of plant extracts from clove, Sophora flavescens Aiton and neem. As the result of antimicrobial activity test, clove extract showed the strongest activity against Botrytis cinerea. In insecticidal activity test, the extract of Sophora flavescens Aiton was the highest against Nilaparvata lugens. The pyroligneous liquor (10%) and emulsified spreader (10%) were added to the extracts of clove and Sophora, respectively, to apply the environment-friendly rice field. In the field treated clove extract, disease damage occurred 49.1% and insect damage occurred 29.5% compared to control plot (100%). In the field treated Sophora extract, disease damage was 56.7% and insect damage was 21.0% compared to control plot (100%). In conclusion, plant extracts from Sophora and clove could control about 50% of disease and about 70% of insect damage that they could be used as environment-friendly resources to control disease and insect in rice farming.

Weed Occurrence and Control in Simultaneous Wheat Sowing Culture with Rice Harvest under No-tilled Paddy Field (무경운(無耕耘) 벼 수확동시(收穫同時) 밀 파종에서 잡초(雜草)발생과 방제)

  • Kim, Dae-Ho;Kim, Su-Kyeong;Kim, Eun-Seok;Son, Beom-Young;Kang, Dong-Ju
    • Korean Journal of Weed Science
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    • v.18 no.3
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    • pp.186-190
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    • 1998
  • To establish weed control method in no-tilled and rice straw-covered wheat sown coincidentally with rice harvest using combine-attached drill seeder, several herbicides and their combination were tested for 2 years. Similar number of panicle to hand-weeding plot was secured at sprayed plot with Buta EC + Glyphosate SL mixture just after seeding. Water-foxtail(Alopeculus aequalis) and broadleaf weeds were controlled effectively by Buta EC + Glyphosate SL mixture, showing the control efficacy of 92 percent. In the 1st cropping year, weed species occurred was simple and water-foxtail predominated nearly half. However, weed species was diversified and water-foxtail predominated 83.5 percent in the 2nd cropping year. Wheat yield of Buta EC + Glyphosate SL plot showed no difference with hand-weeding plot. Dry weight of water-foxtail showed closer linear relationship with wheat yield reduction than that of broadleaf weed.

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방제포커스(2) - 파프리카 주요 해충 방제

  • Park, Hong-Hyeon
    • Life and Agrochemicals
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    • s.283
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    • pp.45-47
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    • 2012
  • 파프리카(Paprika)는 착색단고추로 1995년부터 본격적으로 재배, 수출용으로 소비되었으나 최근에는 피자, 샐러드용으로 국내소비도 많아지고 있다. 재배양식은 여름형과 겨울형이 있다. 여름재배는 3월 중순경 정식, 6월 중순부터 12월까지 수확한다. 겨울재배는 9월 초순정식, 12월 초부터 7월까지 수확하여 연중 재배되고 있다. 시설 내 파프리카 생육적온은 주간 $21-27^{\circ}C$, 야간 $18-19^{\circ}C$이며 습도는 70-80%로서 시설내 발생하는 미소해충들이 번성하기에 좋은 조건이다. 해충 방제는 피해를 정확히 진단하고 발생초기에 적절한 방제수단을 강구하여야 피해를 최소화 할 수 있다. 따라서 재배유형별로 작기 전 기간에 걸쳐 종합적인 해충관리대책이 수립되어야 하며, 어린모 구입시 건전묘 구입, 해충 수시 예찰과 조기방제, 작기 후 포장위생을 철저히 하여야 한다.

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