ISHS Acta Horticulturae 422: International Conference on Integrated Fruit Production
EFFECT OF THE RUSTY TUSSOCK MOTH FEEDING ON GROWTH AND YIELD OF APPLE TREES CV. FANTAZJA |
| Authors: | G.S. Labanowski, R.J. Sokolowski |
| Abstract:
Field studies on 15 year old apple trees artificially infested by 1,3 and 5 egg clusters per tree were carried out. The results showed that the damages of leaves on shoots are much greater than on spurs, but generally leaf damage had no effect on quantity an quality of yield. The damage of fruitlets caused by first generation of larvae and the fruit in summer made by the second generation was very important. It was found that the fruit damages slightly depended on number of larvae, but very strongly on yield size. | |
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