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  • Organic phosphorus and plant… The fraction of organic phosphorus that is available for plants is very small and not enough for the plant to grow properly. Compared to nitrogen…
  • Blosyrus inaequalis beetle in… Blosyrus inaequalis is mostly found in Siri-Lanka and India, but lately also in the northern parts of South Africa. So far the economical damage cause…
  • Sweet potato weevil (Cylas… Sweet potato weevil((Credit of featured image by Author Graham Wise from Brisbane, Australia https://commons.wikimedia.org/wiki/File:Cylas_formicarius_(14576849194).jpg)) can be devastating in Africa. losses between 73((N.E.J.M.Smit,“The effect of the…
  • Propagating, planting and harvesting… Planting material Sweet potatoes are propagated vegetatively through vines (or runners) which are cut up in cuttings, each 300-400mm long. Most other crops are propagated…
  • Butternut fertilizer application tables… Butternut((Featured image by: Butternut Citrouille Courge - Photo gratuite sur Pixabay)) (Cucurbita moschata) fertilizer requirements can be calculated if you know your soil type and…
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Root knot nematode

Root knot nematode, Meloidogyne spp., are small round worms present on the roots and must not be confused with root knots of Rhizobium spp., which are actually good for the plant. Legume nodules are smaller and pinkish inside while Root Knot galls are distorted and have abnormal branches. Root Knot infestation just looks bad compared…

Spray program guidelines

spray guidelines vegetable farming

Scientific application of a spray program ensures its effectiveness. All chemicals must be applied at the right place (target) and the right time and in the right way. Pesticides and fungicides are dangerous chemicals, they are designed to kill pests and diseases, but they can also kill humans if not used correctly. The application method…

Hot chilli insect control

chillies insect control management damage africa

Chilli insect control is very similar to tomatoes, peppers and potatoes as they are all from the same family of plants. You could say they are all cousins to each other. All these plants belong to the genus Capsicum or Solanaceae families. If you have grown tomatoes or green peppers before, be prepared to have the…