Zobrazeno 1 - 10
of 13
pro vyhledávání: '"V. C. Umeh"'
Publikováno v:
Nigerian Journal of Entomology. 35:135-143
Papaya mealybug, Paracoccus marginatus is an invasive polyphagous hemipteran that causes enormous damage to different host plants in Nigeria. However, information on the pest’s damage potential and host range is scanty; therefore, the host preferen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::264ec2f366a06ab88f1224374b303428
https://doi.org/10.36108/nje/9102/53.01.21
https://doi.org/10.36108/nje/9102/53.01.21
Autor:
Ousmane Kodio, A. Traore, Bassirou Diarra, V. C. Umeh, Hari Kishan Sudini, K. Vijay Krishna Kumar, F. Waliyar, Moses Osiru, B. R. Ntare
Publikováno v:
Crop Protection. 70:1-7
Groundnut is a major source of livelihood for the rural poor in Mali. However, the crop is prone to preand post-harvest aflatoxin contamination caused by Aspergillus flavus and Aspergillus parasiticus. Therefore, to minimize health related hazards fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ea24b10849a8b022ac7e00d950a9b80
Publikováno v:
Acta Horticulturae. :361-366
Cost implications and lack of knowledge for ideal pest control practices are among the major factors limiting banana and plantain (Musa spp.) production in Nigeria. A trial was designed to control banana weevil (Cosmopolites sordidus), a major insect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d755051d50ac07739980904e49cae57
https://doi.org/10.17660/actahortic.2010.879.38
https://doi.org/10.17660/actahortic.2010.879.38
Publikováno v:
International Journal of Vegetable Science. 15:106-115
Cabbage production is seldom undertaken in southern Nigeria due to difficult climatic conditions and stress from pests and diseases. To increase producer confidence in cabbage production, appropriate insecticides to minimize insect pest damage and in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9065aee654ed17052075059bc4dee373
https://doi.org/10.1080/19315260802515593
https://doi.org/10.1080/19315260802515593
Development of Environmentally-Friendly Tomato Insect Pest Control Options Under Tropical Conditions
Autor:
D. Onukwu, V. C. Umeh
Publikováno v:
Journal of Vegetable Science. 11:73-84
Production of tomato (Lycopersicon esculentum Mill.) can be difficult due to pressure from insects. Cultural methods can be employed to improve tomato production in the tropics. Tomato cultivars were tested for effects of intercropping with maize on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6061da8087cf32666a2593d6c88061df
https://doi.org/10.1300/j484v11n03_07
https://doi.org/10.1300/j484v11n03_07
Publikováno v:
International Journal of Tropical Insect Science. 21:23-32
Termites (Isoptera: Termidae), white grubs (Coleoptera: Scarabaeidae) and millipedes (Myriapoda: Odontopygidae) are the major groups of soil pests that are widespread and of economic importance in groundnut production in sub-Saharan Africa. Other Col
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5856d0fe4710a884a8ae0260ca52841c
https://doi.org/10.1017/s1742758400020014
https://doi.org/10.1017/s1742758400020014
Publikováno v:
Peanut Science. 27:1-6
A survey of farmers' peanut fields in Benin showed that Aspergillus flavus Link ex Fries infection was influenced by Microtermes (Isoptera: Termitidae) damage. Field trials conducted at the ICRISAT station and a farmer's plot in Mali on termite damag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cc4a85b0ab96e20ab19bf02de81a41b
https://doi.org/10.3146/i0095-3679-27-1-1
https://doi.org/10.3146/i0095-3679-27-1-1
Autor:
V. C. Umeh, M. F. Ivbijaro
Publikováno v:
The Journal of Agricultural Science. 133:403-407
The efficacy of insecticides derived from two local plants was tested on termites infesting maize in maize–cassava–‘Egusi’ melon intercrops in two farmers' fields in south-western Nigeria during the 1989/90 and 1990/91 cropping seasons. The i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b22da3c4890cb402b503973d29a360c
https://doi.org/10.1017/s002185969900670x
https://doi.org/10.1017/s002185969900670x
Publikováno v:
International Journal of Tropical Insect Science. 19:131-140
Among the major arthropods in soil and plant samples taken from groundnut farms during the 1996 cropping season in Mali, Burkina-Faso, Niger, and Nigeria, termites in the genus Microtermes (Isoptera: Termitidae) were the most abundant and widely dist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43666d2cb39748c31f138d3e0d45fbd4
https://doi.org/10.1017/s174275840001938x
https://doi.org/10.1017/s174275840001938x
Relationship Between Characteristics of Macrotermes spp. Mound Materials and Their Surrounding Soils
Publikováno v:
International Journal of Tropical Insect Science. 19:251-255
Inhabited Macrotermes (Termitidae: Macrotermitinae) mounds in cultivated farms in the humid forest agroecological zones of southwestern Nigeria showed higher clay and silt but lower sand contents than their surrounding soils. These physical character
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64ea9d96453345e4661e1a221fedbd42
https://doi.org/10.1017/s174275840001955x
https://doi.org/10.1017/s174275840001955x