We’ve sure had a dry fall, winter and early spring! And alas, as I write this, I can hear the wind roaring outside. Our persistent dry, warm, windy weather has stressed plants and this will make them susceptible to disease and insect pests in 2011. Many tree care specialists think there will be a lot of damage this year.
Here are a few problems we can expect to see:
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CSU Extension |
Winter burn on evergreens. In fact, you can see it now. Look for brown needles, particularly on the south or on the windward side of the plant. Needles will be uniformly brown from the tips inward. It’s the result of our dry, warm, windy weather that promotes transpiration, water loss through the needles. This isn’t a problem until there’s not enough water in the soil to replace what gets lost. Sometimes, though, water loss happens so fast (like on windy days!) that plants cannot keep up with it. Needles lose so much water so fast, they dehydrate or “burn”.
Little can be done at this point, except to water plants and hope for rain or snow! This spring’s new growth will mask most of the brown needles which will eventually fall off. Winter burn does not usually kill established plants, but may seriously damage younger ones.