• Title/Summary/Keyword: 농약방제

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비래해충 - 8월 기온 높으면 피해증가 그 생태와 방제적기 - 벼멸구$\cdot$흰등멸구$\cdot$혹명나방$\cdot$멸강나방

  • 한국농약공업협회
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.3 no.8
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    • pp.67-75
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    • 1982
  • 병충해의 방제목적은 벼의 생육기간 중 벼를 병충해로부터 보호하여 피해를 아주 적게 함으로써 경제적 손실을 막는 데 있다. 이른 봄부터 벼농사 준비를 하여 모기르기, 모내기, 초중기 병충해방제를 잘하여 수확을 눈앞에 두게 되었는데 벼농사 후기에 기상재해 특히 병충해방제 소홀로 예상치 못한 피해를 보아 흉년을 보는 예가 흔히 있다. 특히 비래성 해충은 갑자기 폭발적으로 증가하여 혹독한 피해를 줄 수 있으므로 예찰정보 및 병충해 발생경보등에 귀를 기우려 사전방제에 철저를 기해야 하겠다.

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곤충 기생 선충을 이용한 해충 방제 전망

  • 추호렬
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.10 no.4 s.91
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    • pp.60-67
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    • 1989
  • 곤충기생선충은 대량사육이 가능하고 기주범위가 대단히 넓으며 장기간 보관이 가능하고 기주발견능력과 침해력이 크며 농약 종류에 따라 혼용이 가능한 점등해충방제에 응용함에 있어 매우 전망이 밝은 천적류이다.

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Buffer Zones for Non-Target Organisms by Aerial Pesticide Application Around Rice Paddy (벼 재배지의 항공 방제시 비표적 생물에 대한 안전거리)

  • Park, Yeon-Ki;Jin, Yeoung-Duck;Kim, Byung-Seok;Park, Kyung-Hun;Lee, Jea-Bong;Shin, Jin-Sup;Bae, Chung-Han;Lee, Kyu-Seung
    • The Korean Journal of Pesticide Science
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    • v.11 no.1
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    • pp.32-37
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    • 2007
  • The study was carried out to establish buffer zone for the protection of the non-target organisms by aerial pesticide application. The two pesticide combination of 3-way tank-mixing of three pesticides for aerial application, ferimzone tricyclazole SC + BPMC EC + validamycin-A SL and hexaconzole EC + isoprothiolane EC+phenthoate EC were selected for the simultaneous control of key pests on paddy rice as blast, sheath blight, brown planthopper and moth. Aquatic organisms including killifish and loach in the paddy field and nearby water reservoirs were not affected by aerial application of the pesticides. However, all the water flea were killed, when they were exposed 10 m from the aerially sprayed site, while the water flea exposed in 30 m away from the site were not affected. Honeybees within 50 m in the wind direction and 20 m in the opposite wind direction showed a mortality of $7{\sim}100%$. Residues concentration of the pesticides in paddy water were not detectable level after six days from aerial application. Drifting distance of aerially sprayed droplet from the target area was within 30 m in the wind direction and 20 m in the opposite direction. Consequently, it was the buffer zones in the aerial pesticides application for the protection of the non-target organisms should be at least 50 m for aquatic organisms and 100 m for honeybees.

An aspect of quarantine insect pest occurrence with different management system in sweet persimmon orchard (단감원의 방제 체계에 따른 검역대상 해충 발생 양상)

  • Lee, Dong-Woon;Park, Jae-Wan;Park, Chung-Gyoo;Choo, Ho-Yul;Kim, Young-Sub
    • The Korean Journal of Pesticide Science
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    • v.7 no.3
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    • pp.228-237
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    • 2003
  • Temporary control schedules were tested at sweet persimmon orchards to development new control programs to meet the quarantine repuirements of America in 2001 and 2002. The 'MRL-type control orchards' were sprayed with chemicals which were possibly adaptable to the pome trees in America. A control schedule consisted of those chemicals registered for persimmon in Korea was incorporated in the 'domestic-type control orchards'. The efficacy of these two control type against insect pests was compared with that of a conventional control schedule. In 2001, MRL orchard and domestic orchard were sprayed 7 and 6 times, and two conventional orchards were 6 and 9 times, respectively. In 2002, acaricide was added once to the MRL orchards at late September to reduce the density of mites on harvested fruits. However no insecticide to plant bug control could be applied to the MRL orchards, because no insecticide against bugs was registered for pome trees in America. This resulted in 7 times of applications in MRL and domestic orchards. The conventional orchard was sprayed 9 times. Only the occurrence of the peach pyralid moth, Dichocrocis puntiferalis (PPM) out of 4 quarantine inset species was observed. The PPM was observed during growing season in MRL, domestic, and conventional orchards. However no fruits damaged by PPM larvae were observed after mid October and after harvest. In 2002 only 1 fruit out of 1,350 fruits inspected in June was damaged by the larvae of PPM at MRL orchards. A fungus-feeding mites and collembolan were under calyx of vested fruits. In 2001 they were found on 45.3% of harvested fruits at MRL orchard. However the percentage of fruits with mites in 2002 was greatly reduced to 3.5% at MRL orchard, presumably because of a added application of acaricide at late September. However percentage of fruits damage by hemipteran bugs at harvesting time was quite high 11.3 % at MRL orchards, because no application of insecticide against plant bugs.

Selection and Bioactivity of Tank Mix Combinations of Pesticides for Aerial Application (항공방제용 농약의 혼용가능 조합 선발 및 생물효과)

  • Jin, Yong-Duk;Lee, Hee-Dong;Shim, Hong-Sik;Lee, Sang-Guei;Kwon, Oh-Kyung
    • The Korean Journal of Pesticide Science
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    • v.12 no.4
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    • pp.403-413
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    • 2008
  • This study was conducted to select excellent tank mix combinations of pesticides for aerial application by manned helicopter. Among 209 pesticide combinations of 3-way tank-mixing for aerial application, a total of 93 recommendable combinations including tricyclazole SC+validamycin-A SL+imidacloprid SL were finally selected for the simultaneous control of key pests on paddy rice such as blast, sheath blight, brown planthopper and moth. The selected combinations were not phytotoxic to rice plants and nearby non-target crops, and excellent in physicochemical properties of ultra low volume (ULV) spray solutions. The efficacies on sheath blight, brown planthoppers and white-backed planthoppers of pesticides sprayed by aerial application were similar to those of pesticides by conventional spraying. Total cost of aerial application in paddy rice was very economical as one fourth level of that of conventional spraying.

식량증산/도열병의 발생동향과 방제대책 - 예찰정보등 참고로 조기방제에 주력

  • 이경용
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.7 no.4
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    • pp.88-96
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    • 1986
  • 도열병은 벼농사에 발생하는 40여종의 병해중 가장 피해를 많이 주는 무서운 병으로 발생의 역사가 다른 병해에 비해 길고 많은 연구가들이 내병성품종 육성과 농약등에 관해 시험연구를 계속 실시하고 있으며 농민들이 적극방제를 해도 아직까지 완전해결을 못보고 매년 피해를 보고 있다. 특히 ''60$\~$''70년대 중반기까지는 일반계품종에서 도열병이 많이 발생되었으나 ''78년에는 통일계(다수계)품종에서 피해가 많이 나타났고 ''80년에는 냉해로 인한 도열병 피해가 많았으며 그 후에도 국지적으로 상습지, 사질답, 방제소홀답, 과비답에서 피해가 나타나고 있다.

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올해 방역행정의 이모저모

  • 조태호
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.4 no.1
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    • pp.10-16
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    • 1983
  • 농수산부는 올해 식물방역행정의 기본방향을 $\triangle$종합방제를 정착화하여 발병요인을 극소화하고 $\triangle$병충해 발생 상습지를 지속적으로 개선 관리하며 $\triangle$종자소독 및 못자리 입제농약을 적극 사용하고 $\triangle$본답초기에 침투성 살충제를 살포하는 동시 $\triangle$조기정밀예찰과 예찰정보 발표로 효율성을 제고시키고 $\triangle$공동방제단의 활성화와 기동화에 노력하는 한편 $\triangle$마을단위 농약현장공급의 정착화를 유도하기로 했다. 농수산부는 또 $\triangle$농약관리제도 개선으로 농민 민원을 해소하고 $\triangle$농민의 경각심을 제고시키기 위해 안전사용에 대한 지도 계몽을 더욱 강화해 나가기로 했다.

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