• Title/Summary/Keyword: 응애

Search Result 470, Processing Time 0.02 seconds

'사과탄저병이 가장 문제됐다' ='85 과수 병해충발생 및 방제의 총결산=

  • 김성봉
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
    • /
    • v.6 no.11
    • /
    • pp.2-11
    • /
    • 1985
  • 과수농사를 짓는데 있어서 어느 해이던 간에 병해충의 발생이 없는 해는 없다. 올해 역시 예년과 마찬가지로 각종 병해충이 발생되었던 한해였다. ''70년도부터 ''85년도까지의 주요 병해충 발생양상을 보면, 점차 증가하고 있는 병해로 사과반점낙엽병과 부패병이 있는데, 이들 병은 ''70년대초에는 거의 무시할 정도의 발생을 보인 병들로 ''78년이후 급증하는 병이며, 해충은 점박이응애, 사과굴나방, 조팝나무진딧물, 포도호랑하늘소 같은 것들로 이들 해충은 현재 농약만으로의 방제가 어려운 상태에 있다. 이와는 반대로 점차 그 발생이 감소하고 있는 병해충은 ''70년초 심하였던 배나무적성병, 복숭아축엽병으로 ''75$\~$''80년도에 와서 거의 미미한 발생을 보이고 있다. 반면 예나 지금이나 지속적인 발생으로 과수재배농가에 피해를 주고 있는 것으로 사과부란병, 복숭아세균성천공병, 심식충류, 잎말이나방류, 깍지벌레류 등이 있다. 이들중 올해 가장 문제가 되었던 것은 사과탄저병으로 금년도의 기상조건이 발병에 좋은 조건이었고, 방제시기에 일기가 불순하여 충실한 방제를 하지 못한 관계로 더욱 심하였다.

  • PDF

여름철 과수해충 관리 "포인트" -그 생태를 중심으로-

  • 박규택
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
    • /
    • v.6 no.6
    • /
    • pp.51-62
    • /
    • 1985
  • 일반적으로 과수라 하면 사과, 배, 포도, 감, 밤 등 많은 종류가 포함되며 그들을 함께 묶어 해충관리에 대한 얘기를 하기는 어려움으로 여기서는 주로 사과, 배, 복숭아를 중심으로 많이 발생되는 주요 해충들에 대해서만 언급하기로 한다. 과수의 전 생육기간을 통하여 잎, 줄기, 뿌리, 과실 등을 가해하는 해충들을 대별하여 보면 나방류 해충으로 잎을 말고 가해하는 심식충류, 잎의 조직속으로 굴을 파고 들어가는 굴나방류, 성숙한 과실로부터 당분을 흡즙함으로서 피해를 입히는 과실 흡아류를 비롯하여 줄기속을 가해하는 유리나방, 하늘소 등의 줄기식입해충, 진딧물을 비롯한 각종의 잎 가해해충 그리고 곤충은 아니지만 일반적으로 편의상 곤충에 포함되어 취급되고 있는 응애류 등 각양각색이다. 우리나라에서는 이들 과수해충들에 대한 조사연구가 극히 미비한 상태로 주로 일본의 연구결과를 토대로 모든 방제대책을 적용하고 있는 실정이다. 특히 이들 과수해충들에 대해 연구하는 전문가가 국내에는 몇사람 되지않는 것이 심히 유감스러운 일이다. 본호에서는 이들 해충들중 여름철에 문제되는 종류들을 중심으로 그들의 개략적인 생태와 방제요령을 알아본다.

  • PDF

A Study on Spatial and Temporal Distribution of a Pest via Generalized Linear Mixed Models (일반화선형혼합모형을 통한 해충밀도의 시공간분포 연구)

  • 박흥선;조기종
    • The Korean Journal of Applied Statistics
    • /
    • v.17 no.2
    • /
    • pp.185-196
    • /
    • 2004
  • It is an important research area in Integrated Pest Management System to estimate the pest density within plants, because the artificial controls such as spraying pesticides or biological enemies depend on the information of pest density. This paper studies the population density distribution of two-spotted spider mite in glasshouse roses. As the data were collected repeatedly on the same subject, Subject-Specific and Population Averaged approaches are used and compared.

Morphological and Ecological Observations on Myocoptes musculinus Koch 1844(Sarcoptiformes; Listrophoridae) Collected from Mus musculus alba (흰생쥐에서 분리(分離)된 쥐 모식응애 (Myocoptes musculinus)에 관(關)한 형태(形態) 및 생태관찰(生態觀察))

  • Kang, Yung-bai
    • Korean Journal of Veterinary Research
    • /
    • v.27 no.1
    • /
    • pp.77-83
    • /
    • 1987
  • For the development of the specific pathogen free (SPF) or germ free laboratory animals, a parasitological approach was applied to the preliminarily selected laboratory albino mice (Mus musculus alba) in order to observe the ectoparasites on the hair of the host animal. The mites collected from the laboratory albino mice were identified as Myocoptes musculinus and classified into the Family Listrophoridae, Suborder Sarcoptiformes, Order Acarina. The overall infection rate of the mites was revealed as high as 73.2% (52 out of 71 heads) and the development process from the eggs to larvae was observed for the understanding of the basic ecological properties.

  • PDF

Allium tuberosum, a New Host of Root-knot Nematode, Meloidogyne Incognita in Korea (부추의 뿌리혹선충 피해 보고)

  • Kim, Dong-Geun;Lee, Joong-Hwan
    • Research in Plant Disease
    • /
    • v.14 no.1
    • /
    • pp.76-78
    • /
    • 2008
  • During the investigation of Allium decline in Pohang, Korea, root-knot nematode was found from root of Allium tuberosum Roth. It was identified as Meloidogyne incognita and was first reported from Allium tuberosum. Allium decline was associated with root-knot nematode, root mite and Fusarium sp. but root-knot nematode appeared to be the main cause of Allium decline.

A Study on the Analysis and Visualization of Vespa velutina nigrithorax Distribution to Prevent the Decrease of Honeybee Population (꿀벌 개체수 감소를 예방하기 위한 등검은말벌 분포도 분석 및 시각화에 대한 연구)

  • So-Yeong Lee;Seok-Min Hong;Yong-Tae Shin
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2023.05a
    • /
    • pp.399-401
    • /
    • 2023
  • 최근 꿀벌 집단 실종이 잇따라 발생하고 있으며 이에 대한 뚜렷한 원인은 없으나 꿀벌응애류, 말벌류에 의한 폐사와 이상기후가 복합적으로 작용했기 때문이라고 추측하고 있다. 추측하고 있는 원인 중 꿀벌 봉군의 약화 요인으로 작용하는 등검은말벌의 분포도를 시각화하여 꿀벌의 개체 수 피해를 줄이는 데 도움이 되고자 한다.

Seasonal Occurrences of Insect Pests and Control Effects of Eco-friendly Agricultural Materials (EFAMs) in the Field of Lycium chinense under Environment- Friendly Management (친환경 구기자재배지에서 해충의 계절 발생소장 및 친환경유기농자재의 방제효과)

  • Ryu, Tae-Hee;Park, Sang-Eun;Ko, Na-Yeon;Kim, Jeong-Gon;Shin, Heo-Seob;Kwon, Hye-Ri;Kim, Yeong-Guk;Lee, Bo-Hee;Seo, Mi-Ja;Yu, Yong-Man;Youn, Young-Nam
    • The Korean Journal of Pesticide Science
    • /
    • v.17 no.4
    • /
    • pp.402-410
    • /
    • 2013
  • Insect pests damages are increasing on the field of Lycium chinense under environment- friendly management Thus, we was to monitor the occurrence of pests on organic L. chinense in Chungnam Cheongyang and, insecticidal effect of eco-friendly agricultural materials (EFAMs) were tested against major pests. When the buds come out, injury by L. chinense was very high causing the high population density of Myzus persicae in late May and early June, and the injury by Lema decempunctata was increased from mid-June. Otherwise, injuries by Eriophys macrodonis, Henosepilachna vigintioctomaculata and Hedma spp. were continued throughout the growing season. From the fruit held in late July, Hemipteran insects including Plautia stali and Halyomorpba balys were sucking the fruit, and their injury to L. chinense were gradually increased. For the eco-friendly environmental control of M. persicae, L. decempunctata and E. macrodonis, EFAMs containing Sophora flavescens, Melia azedarach (Chinaberry), Chenopodium ambrosioides (Mexican tea), Quassia amara (Amargo), Stemona sessilifolia, Sophora seeds and Nepeta cataria (Catmint), were selected and used to control the insect pests. Control effects of the mixed extract with S. flavescens and Sophora seeds against M. persicae and L. decempunctata were higher than any other EFAM as 84.0% and 86.6%, respectively. In case of E. macrodonis, its control effect was good with the mixed extract with S. flavescens, C. ambrosioides and M. azedarach.

Damage and biological control of dark winged fungus gnats, Lycoriella ingenua (Diptera: Sciaridae) in a shiitake cultivation (표고 톱밥재배에서 검정날개버섯파리 Lycoriella ingenua (Diptera: Sciaridae)의 피해와 생물적 방제)

  • Kim, Hyeong-Hwan;Cho, Myoung-Rae;Kang, Taek-Jun;Ahn, Seung-Joon;Jeon, Sung-Wook;Lee, Chan-Jung;Cheong, Jong-Chun
    • Journal of Mushroom
    • /
    • v.10 no.4
    • /
    • pp.184-190
    • /
    • 2012
  • Monitorings and management experiment of adult Lycoriella ingenua (Diptera: Sciaridae) in artificial sawdust grown shiitake mushroom cultivation were carried out by using yellow sticky traps and Hypoaspis aculeifer (Acari: Laelapidae) at Hwaseong, Buyeo and Cheongwon in 2012. The larvae of L. ingenua reduced commercial value of the mushroom by direct eating or retarding the growth of mushroom by spongifying the sawdust medium. The number of L. ingenua caught by traps showed the highest peak in late september resulting in 127.5~1,025.7, 87.4~743.6 and 133.7~650.4 individuals per trap in Hwaseong, Buyeo and Cheongwon, respectively. Damage rate of fruiting bodies in shiitake mushroom by L. ingenua were 7.7~30.3% in Hwaseong, 6.7~25.3% in Buyeo and 5.3~26.0% in Cheongwon and showed the highest peak in late september. L. ingenua were effectively controlled when 30.3 individuals of H. aculeifer per $m^2$ inoculated for three time with 7 to 14 days of interval. In Hwaseong, Buyeo and Cheongwon, density of L. ingenua which were caught on the yellow sticky traps were 168.2, 126.1, 132.5 individuals, respectively. And, damage rate of fruiting bodies by L. ingenua were 5.9%, 5.5% and 5.4% respectively. Both of the L. ingenua density and damage rate of mushroom reduced more than 60% in all experimental site in contrast to the control treatment.

Insecticidal Activities of Various Vegetable Extracts against Five Agricultural Insect Pests and Four Stored-Product Insect Pests (다양한 채소 추출물의 농업해충 및 저장물해충에 대한 살충활성)

  • Lee, Sang-Gil;Park, Ji-Doo;Song, Cheol;Cho, Kwang-Yun;Lee, Sang-Guei;Kim, Moo-Key;Lee, Hoi-Seon
    • The Korean Journal of Pesticide Science
    • /
    • v.5 no.2
    • /
    • pp.18-25
    • /
    • 2001
  • Ethanol extracts from 46 vegetables were tested their insecticidal activities toward five agricultural insect pests and four stored-product insect pests. The efficacy varied with both agricultural insects/stored-product insects and vegetable species used. Potent insecticidal activities, at the concentration of 5,000 ppm, were produced from extracts of Nelumbo nucifera and Ulva lactuca against Myzus persicae, Zea ways and Z. mays (leaf) against Nilaparvata lugens, Citrullus vulgaris (seed) and U. lactuca against Plutella xylostella, N. nucifera, Z. mays, and Z. mays (leaf) against Spodoptera litura, and C. vulgaris (seed), Daucus carota, Helianthus annuus (leaf), H. annuus (flower), Lactuca sativa, and Zingiber officinale against Tetranychus urticae. Potent insecticidal activities at the concentration of 2,500 ppm were exhibited from the extracts of N. nucifera and U. lactuca against M. persicae, Z. mays against N. lugens, C. vulgaris (seed) and U. lactuca against xylostella, N. nucifera and Z. mays against S. litura, and C. vulgaris (seed), H. annuus (flower), and L. santiva against T. urticae. Against four stored-product insect pests at 50 ppm, extracts of C. vulgaris (seed) and Cucurbita moschatla (seed) against Sitophilus oryzae and C. vulgaris (seed), H. annuus (seed), and Z. officinale against Plodia interpunctellfa revealed potent insecticidal activities over 80% mortality. In tests with Callosobruchus chininsis and Lasioderma serricorne, extracts of all vegetables tested exhibited meager and no activity.

  • PDF