Influence of some plants of the Rosaceae family on the biology of red spider mite, Panonychus ulmi (Koch). 3. Influence of apple leaves age of their localization on long shoots and spurs
1986
Bielak, B. (Warsaw Agricultural University, Warsaw (Poland). Dept. of Applied Entomology)
Effect of leaf localization on the development of Panonychus ulmi was the most significant in June. This development being poorer on young leaves, an effect of varying content of phosphorus, potassium and manganese was proved
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