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Depending on the type of crop and plant to be trellised one can use netting of many different heights (these vary from 50 cm to up to more than 3 meters for use in greenhouses or shade house). When choosing the height of the vegetable trellis netting one should keep in mind that the net should be installed 30–40 cm above the soil.
Agricultural woven wire is identifiable by wire "knots" wrapped around each intersecting wire. Mesh wire material is spot welded at each junction. Woven wire and mesh wire fences are also called square wire, box wire, page wire, sheep fence, or hog fence in the United States, sheep netting or pig netting in Britain, and ringlock in Australia.
Prior to the late 1700s, hulls were made almost entirely of wood, often white oak. Sacrificial planking was the common mode of hull protection. This technique included wrapping a protective 1/2-inch thick layer of wood, often pine, on the hull to decrease the risk of damage. This layer was replaced regularly when infested with marine borers. [47]
Controlled-environment agriculture (CEA) -- which includes indoor agriculture (IA) and vertical farming—is a technology-based approach toward food production. The aim of CEA is to provide protection from the outdoor elements and maintain optimal growing conditions throughout the development of the crop.
Bird netting or anti-bird netting is a form of bird pest control. It is a net used to prevent birds from reaching certain areas. Bird protection netting comes in a variety of shapes and forms, The most common is a small mesh (1 or 2 cm squares) either extruded and bi-oriented polypropylene or woven polyethylene.
Biological control or biocontrol is a method of controlling pests, whether pest animals such as insects and mites, weeds, or pathogens affecting animals or plants by using other organisms. [1] It relies on predation , parasitism , herbivory , or other natural mechanisms, but typically also involves an active human management role.