Goshen News, Goshen, IN

Local News

July 29, 2013

COLUMN: Trees need to be pampered this year due to last year’s drought

GOSHEN — Remember last summer’s drought? It seemed interminable and brutal.

This summer it’s much different. Our current precipitation level for the year, as recorded by the National Oceanic and Atmospheric Administration, is 21.4 inches — just slightly above average. Last year, we didn’t reach that mark until mid-October.

In other words, we’re doing pretty well for rain this year. But even so, young trees need to be watered. In fact, they especially need to be watered right now. And this is especially because of what they experienced last year.

During Last year’s drought trees were put through plenty of stress. Even ones which were getting some water were probably drought stressed to a degree.

Drought stress was often expressed in wilting leaves, browning leaves or some leaves dropping entirely from the tree. In extreme cases all the leaves browned and fell to the ground. This is a tree’s first response to drought: since water is lost through leaves, a tree can conserve precious water in its branches, trunk and roots by limiting its leaves.

There is a trade-off for this, however. By decreasing leaves, the tree is also decreasing its ability to manufacture energy (through photosynthesis). This energy is necessary for the tree to carry out its life processes. Not only that, but some of this energy needs to be stored away — in the roots — for the following year, for the growing of new buds, leaves and flowers in the spring before there are any leaves to create new energy.

So, when a tree has to stop energy production in order to conserve water this can have a ripple effect, diminishing the tree’s abilities in the current growing season and in the following growing season.

This case is underscored for a young tree, which has smaller energy stores to begin with, and a smaller over-all leaf surface.

Young trees — resilient as they are — that were drought stressed a year ago used much of their stored energy to survive into this year. As a result, even though we’ve done quite well for rain this year, in the past three drier weeks I’ve seen a lot of young trees showing drought stress. Simply put, they are still recovering from last year’s ordeal. This means that now — late July and August — is the time to baby any young trees you can. Water them three times a week with a slow trickle of water for up to one hour.

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Last weekend (July 12) the Goshen Parks Department held its Kid’s Try-athlon to promote childhood fitness and this week (July 18) the new bicycle trail is open to the fairgrounds in Goshen, offering residents a healthy way to get to the annual agriculture exposition. Have you joined the local fitness movement?

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