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  • 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…
  • Sweet potato soil requirements Sweet potato soil requirements are similar to many other vegetable crops. Good high quality soil is the first step towards good yields, it is not…
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Weed Management and control

open field vegetable growing weed control

Successful open field crop production depends on good weed management practices.  Controlling weeds forms part of the total crop management program which includes other activities such as pest and disease management and general hygiene.  The planning of a weed management control program is much easier than planning pest and disease management programs.  The reasons are that…

Problems caused by weeds

Problems caused by weeds in agriculture

The problem with weeds is that they have a negative impact on bottom line of the farming business.  Quite often growers don’t have enough deeper knowledge to understand just how much it affects yields, quality and efficiency of the whole farm. Competition All plants exert some type of competition on each other.  The competition can be in…

Classification of weeds

mulch weed vegetable farming tomatoes weed control

General classification of weeds Most farmers use a different method of classifying weeds since it is easier to understand and separate each weed from another in order to control them. Classification according to growth season length Annuals: These weeds complete their life-cycle in one year. Due to the abundance of dormant seed and fast growth of…

Biology of weeds

weed competition control farm management biology science

Biology of weeds is important since it covers all aspects of their establishment, growth and reproduction.  All climatic factors have a significant effect on biological processes.  A good knowledge of the biology of weeds will ensure that the grower and researcher will be able to apply technology correctly to control any weed problem. The succession process…

Advantages of weeds

weeds attract insects birds advantages

It sounds strange to think that weeds do have advantages.  This way of thinking is made difficult by our perception and definition that weeds do not have any use.  Plants classified as weeds are often removed without evaluating the environment first.  By removing one type of weed in an area does not prevent another, even worse…

Weeds

weeds farming pests

A weed is a plant which is growing where it is not desired, or a plant out of place.  For instance, maize growing in a peanut field is a weed. Wheat growing in a cotton field is a weed.  A weed can be any plant type which is not contributing to the profitability of the farm…