WebPoor storage conditions can bring about losses caused by the combined action of moulds, insects, rodents and other pests. ... Finally, in addition to these factors, there are others which can often be partly responsible for post-harvest losses, such as, for example: marketing practices, sectoral policies and other socio-economic aspects ... WebDiseases caused by fungi and bacteria commonly result in losses of fresh produce. Virus diseases, which can cause severe losses in growing crops, are not a serious post-harvest problem. Insect pests that are mainly responsible for wastage in cereals and grain legumes are rarely a cause of post-harvest loss in fresh produce.
An overview of crop loss assessment in maize - ResearchGate
WebInsects are responsible for two major kinds of damage to growing crops. First is direct injury done to the plant by the feeding insect, which eats leaves or burrows in stems, fruit , or roots. There are hundreds of pest species of this type, both in larvae and adults, among … WebPest and disease problems in plants are often the result of more than one cause. These are called "complexes." For example aphids and leafhoppers often spread various plant diseases in the process of feeding. Or weak plants in nutrient deficient soils (an abiotic condition) are sometimes more susceptible to attack by various diseases and insects. k n air filter tw200
Crop Pest - an overview ScienceDirect Topics
WebA pest is any animal or plant harmful to humans or human concerns. The term is particularly used for creatures that damage crops, livestock, and forestry or cause a nuisance to people, especially in their homes. Humans … Web13. sep 2012 · Pests and diseases can affect crops and have a serious impact on the economic output of a farm. Farmers should vary their prevention and treatment methods depending on the crops they grow and the ... WebDisease of nursery beds and young seedlings resulting in reduced seed germination and poor stand of seedlings. Very high seedling mortality 25-75% ... Zygospores on seeds and diseased crop debris in soil. Secondary: Conidia ... they become the most important source of new spore production and are responsible for rapid disease spread. Favourable ... k my invest จองหุ้น