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preparation to emerge as adult beetles they may be crushed by rollingthe lawn with a ten-ton roller, but failing this heroic treatment, thereseems to be no simpler remedy. Mowing Lawns. Mowing of lawns should be governed by the useto which the lawn is to be put. Mowing should not be very frequentin hot weather nor very long neglected at seasons when the grass isgrowing rapidly. Clipping should cease before the grass stops grow-ing in the autumn, so that a long growth may be left on the lawn overwinter. A portion of the clippings should be left on a lawn to act as amulch, especially if the grass is cut often. Enough grass leavesmust be left on each plant so that it can maintain its growth, but onthe other hand, growth must not be carried to the point of seed pro-duction, which, more than anything else, tends to weaken the vitalityof a plant. About two inches is the height most often recommendedfor grass. It is best to leave mower knives set high and mow morefrequently rather than to allow grass to grow high and then cut it lowand thus remove too large a portion of the leaf surface of the plant, andalso expose the soil to the direct rays of the sun. When a lawn becomesrun down it is generally better to remake it entirely, instead of wastingmoney on patching. It is well to consider that if the original grasscould not succeed on the soil, new grass will certainly fail. |
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