Trellis Maintenance Vineyard trellis is extremely crucial in the success of vineyard farming. Since plants grow on trellises, these structures can be subjected to a lot of elements that could eventually lead trellises to break down. Here are some of the causes of trellis damage: -Weather The extreme temperatures caused by weather changes cause the structural integrity of a trellis to deteriorate. Rain and sun can cause a lot of damage to these structures as well. Sudden changes in temperatures can significantly affect the structure of trellises. -Weight Crawling plants rest on trellises. Vines can get really heavy and could eventually cause trellises to collapse. Even the ...