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Crush 2019

Canadian Vineyard and Winery Management Magazine

Canadian Vineyard and Winery Management Magazine

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In case white-tailed deer were not problematic enough,<br />

vineyard operators will also see an increase of coyotes<br />

on landscapes, as they breed until March, and even bear<br />

movement.<br />

Vineyard managers can try different tactics for ridding<br />

wild animals from landscapes. Since the average vineyard<br />

size is approximately 49 acres, grape growers may try to<br />

find the cheapest strategy for keeping wildlife off their<br />

landscapes. Cheaper alternatives for deer resistance<br />

include applying deer repellents around vineyards and<br />

planting deer-resistant flowers. The problem with deer<br />

repellents are that the liquid or granular formulas wash<br />

away after heavy rain and snow. They may only last for<br />

30 days, making them a constant reminder to vineyard<br />

managers to re-apply around large acres of land. Chemical<br />

odour repellents may be harmful (toxic) to both humans<br />

and pets. And, deer-resistant plants such as marigolds<br />

and daffodils, grow in spring, but that does not leave<br />

protection in the winter season.<br />

Deer fencing for vineyard protection<br />

A low-maintenance alternative for deer resistance is<br />

deer fencing. While there are many types of fences on<br />

the market, the best fence for protecting vineyards from<br />

wildlife damage is made from either polypropylene or a<br />

PVC-coated metal. The fence mesh chosen for vineyard<br />

protection depends on the amount of wildlife traffic<br />

travelling to landscapes and the type of wildlife.<br />

Most poly deer fences have a certified breaking strength<br />

between 650 and 1,400 pounds, and a life expectancy<br />

up to 20 years. This type of fence material works best<br />

against light-to-moderate deer populations but not against<br />

chewing animals.<br />

Metal Deer Fences keep out chewing animals, such as<br />

coyotes, wolves, and small critters thanks to a tough steel<br />

core and PVC-coating. The life expectancy of steel deer<br />

fences is between 20 to 30 years and appear virtually<br />

invisible from a short distance.<br />

Summary<br />

Winter is tough times for wildlife, as they travel far and<br />

wide for food only to find little. Tougher times arise for<br />

vineyard managers as wildlife approach landscapes to<br />

eat and breeding seasons goes into full swing. To get<br />

through winter struggles, growers will need to prune back<br />

grape vines and start thinking about deer management<br />

strategies to prepare them for spring winemaking. o<br />

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