• Title/Summary/Keyword: 방제적기

Search Result 106, Processing Time 0.024 seconds

Control System of Asian corn borer, Ostrinia furnacalis (Guenee) in Coix lacryma-jobi L. var. ma-yuen Stapf (율무의 조명나방 방제체계)

  • Chang, Seog-Won;Kim, Hee-Dong;Kang, Chang-Sung;Kim, Sung-Kee
    • Korean Journal of Medicinal Crop Science
    • /
    • v.8 no.1
    • /
    • pp.74-78
    • /
    • 2000

  • This study was carried out to select the effective insecticides for control of Ostrinia furnacalis(Guenee) in Yonchon, northern part of Kyunggi province, where is main producing region of adlay in Korea. The Asian corn borer in adlay field had three generations a year. The first stage of adult activity was higher from late May to middle June, the second from late July to early August and the third late September. Based on difference in control value, the relative ranks of some insecticides were lambda cyhalothrin EC > cartap hydrochloride GR > carbaryl EC. In control value by different application timing of Lambda cyhalothrin EC, yields were significantly different, that is, twice applications on second generation showed the control value of $90.6%{\sim}93.5%$. Unhulled grain yield on Lambda cyhalothrin EC treated plot on second generation was higher than that in untreatred plot by 82%.

  • PDF

Seasonal Occurrence And Environment-Friendly Control Of Mulberry Sucker, Anomoneura Mori, On The Mulberry Grown For Fruit Production (오디 생산용 뽕나무에서 뽕나무이 발생소장과 친환경 방제)

  • Moon, Hyung-cheol;Lim, Ju-rak;Kim, Dong-won;Kwon, Seok-ju;Han, Soo-gon;Kim, Jeong-man
    • Korean journal of applied entomology
    • /
    • v.55 no.4
    • /
    • pp.383-388
    • /
    • 2016

  • Seasonal occurrence and tne effects of two organic farming materials on mulberry sucker, Anomoneura mori were investigated on mulberry grown for fruit production in Buan, Jeonbuk, South Korea.. Overwintered adults of A. mori occurred from late March to mid-May with a peak in mid-April. Overwintered females began to lay eggs on winter buds from mid-April. Emerged nymphs appeared from early May and peaked in mid-May. Newly eclosed adults, appearing from early June, soon scattered and were not found in the mulberry field after mid-June. Therefore, the optimal control period for A. mori was mid-April for adults and early May for nymphs. Sophora extract and derris extract were effective organic farming materials for controllingl the nymphs of A. mori. It was found that derris extract sprayed 2-3 times at 5-days intervals in early May effected good control against A. mori nymphs.

  • https://doi.org/10.5656/KSAE.2016.10.0.042 인용 PDF KSCI

$90\%$정도 익었을때 수확해 작은 단으로묶어 세워 말리도록 - 적기 벼베기와 벼 말리기 요령

  • 문병영
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
    • /
    • v.5 no.10
    • /
    • pp.55-60
    • /
    • 1984

  • 우리가 농토배양을 선두로 못자리 설치에서부터 긴 여름불볕 더위속에서 열심히 벼농사를 짓는 것은 결실의 계절인 가을에 질이 좋은 쌀, 보다 많은 쌀을 풍성한 마음으로 거두기 위해서 이다. 특히 올해는 벼 안전 다수확을 위해서 겨울 논물가두기부터 시작하여 못자리 조기설치, 일찍 모내기를 끝내고 적기병충해 방제와 마지막 단계에서 뜻밖의 폭우가 있었지만 폭우의 피해까지도 어느 정도 슬기롭게 극복하여 이제 최후의 거두어 들이는 작업에 온 정성을 다할 때가 되었으며 또 내년을 위해 금년 한해동안의 벼농사에서 잘 되었던 점과 못 되었던 점을 정리해 두었다가 거울로 삼는 것도 바람직하다.

  • PDF