Field Crops
- 221
- Potato Yellow Dwarf Virus, Nucleorhabdovirus
- Photograph of an affected plant and a description of the symptoms.
- 222
- PotatoBeetle.org
- Information on biology and management of the Colorado potato beetle, Leptinotarsa decemlineata. Includes general information, review of various management techniques, searchable database of scientific literature and links to other resources.
- 223
- UC IPM Online: Potatoes
- Provides a year-round IPM program for potatoes with information on monitoring and managing the pests and diseases found.
- 224
- Virus Problems of Potatoes
- Photographs of symptoms and information on virus Y, leafroll virus, virus S, virus X, mop top virus, spraing, tobacco rattle virus, potato spindle tuber viroid and alfalfa mosaic virus.
- 226
- Beet Leaf Curl Virus, Rhabdovirus
- Photograph of affected plants and a description of the symptoms.
- 227
- Sugar Beet Nematode
- Account of the damage caused by this pathogen, control measures, and photographs and drawings.
- 228
- Sugarbeet Pest Management
- Provides general information on pesticides and details of the diseases, insects, mites, nematodes and weeds that may attack this crop.
- 229
- Fusarium Wilt (Stem Rot)
- Photograph of lesions on sweet potato stems caused by Fusarium oxysporum sp. batatas.
- 230
- Sweetpotato Weevil: Cylas formicarius
- Information, management and references for this serious worldwide pest.
- 231
- On the Bright Side of Yam Production
- Nigeria is the leading producer of yams in sub-Saharan Africa but most farmers face problems with declining productivity, disease, cost and scarcity of clean planting material. A project in Kogi States is showing farmers how to grow their own disease free material.