Yazar
John Stephen Yaninek
2 cilt bulundu.
Cilt sonuçları
Biological control
John Stephen Yaninek · International Institute of Tropical Agriculture
210 sayfa · 1989
Agricultural pests / Control / Congresses / Biological control / Pests
An assessment of the phenology, dynamics and impact of cassava green mites on cassava yields in Nigeria
John Stephen Yaninek · Yayınevi bilinmiyor
166 sayfa · 1985
Biological control / Plant mites / Cassava / Diseases and pests