Friday, October 14, 2022

insect nets in kenya

An insect net is a fabric made using monofilament with small pores to allow air circulation and act as a barrier that prevents insects from passing through.
The best farming practice is usually growing crops in the natural environment. 
The risk of attack from insects, wild birds and other environmental factors is relatively high. This lowers the yield per unit area of investment on factors that can be controlled.
 The use of insect nets is constantly growing over the last few years because it's cheap to buy and apply, and also it is eco-friendliness. They are used to protect crops against insects and birds, act as windbreakers, and nets also filter excess solar radiation and protect against hail storms. 
Insect nets are industrially woven and are made from recycled polyethene strips that come with different structural features depending on the farmers' needs. 
Insect nets have greatly reduced the use of insecticides and pesticides in modern farming.
Nets are characterized according to different structural features like material type; which consists of the dimension thread, texture, porosity and weight, radiometric properties such as colour, light transmission and shading factors, and physical properties like air permeability, tensile stress and durability.
Depending on the texture, threads are connected in such a way that they form a regular porous geometric structure. 
The thickness of the net varies from 0.25mm to 0.32mm. The weight of the net averages weight of between 15 and 300grams per meter square depending on the thickness of the thread, texture and mesh size. Nets have an average width of 15 meters and a length of up to 300 meters. 
The size of the mesh varies from 0.2 to 3.1mm for insect nets, 1.7 to 7.0mm for shade nets, 2.4 to 4.0mm for anti-hail nets, 1.8 to 7.0 for windbreak nets and 3 to 4cm for anti-bird nets. Nets can be used to enclose structures similar to greenhouses made of galvanizes steel or wood, can be mounted on wooden poles to cover the plants or installed in vents of greenhouses to act as a filter. 
The main application of nets is to protect against insects and birds, meteorological hazards, reduce solar radiation and help soil cover. Nets made from high-density polyethene that are light in weight, durable and can withstand extreme temperatures.
Insect nets have controlled pests and disease infestation and marginally reduced the use of insecticides and pesticides. Insect nets also reduce the level of exposure to extreme weather conditions such as wind, hail storms and direct sunlight due to the unique photo-selective properties that create a microclimate. 
Insect nets also play an important role in preventing the escape of pollinating insects like bumblebees from greenhouses. 
They are also used in harvesting produce like almonds and in post-harvesting operations such as collecting flowers, drying fruits and packaging produce. 
Nets can also be used for mulching which assists in maintaining soil humidity and controlling soil erosion.
The use of plastic nets is rapidly increasing in various agricultural applications. 
Insect nets are usually considered environmental, soil and human health friendly. 
They are an alternative to pesticides and insecticides and are usually employed in organic farming. The quantity and quality of products have generally increased with the use of insect nets. Crops grow with less or no disturbance from insects, wild animals and other environmental factors. 
Insect nets have reduced the use of farm chemicals which in excessive use lower the quality of produce, pollute the soil and contaminate the water body.  Although plastic insect nets have become commonly used in modern farming practices, the sustainability of this farming practice has continuously been questioned.
 This has made researchers manipulate the new advanced technologies to develop biodegradable insect nets that are free from plastic-based compounds.

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