Abstract:

Measures of rehabilitation of low yielding bamboo stand were taken to control the damage of Aculus bambusae, including brush cutting and weeding without fertilizing, after rehabilitation fertilizing once, fertilizing and spraying pesticide once, fertilizing twice or fertilizing and spraying pesticide twice. The effect of control Aculus bambusae by fertilized and sprayed pesticide after brush cutting and rehabilitation was 78.9～85.8%, the damage index of mites descented but it rised a little if having not fertilized. After reconstruction, the index such as quantity, diameter, yield of the new bamboo, leaf area, fresh weight of 100 leaves, dry weight of 100 leaves were higher than the CK. The economy benefit of bamboo stand was notable by carrying out 5 measures and the ratio of input to output were 1∶2.4,1∶3.3,1∶3.6,1∶5.7,1∶6.1 respectively. It was suggested to adapt to local condition to control Aculus bambusae accompanying the rehabilitating the low yielding forest, cutting, rehabilitation, fertilizing and spraying pesticide were taken if the mites infested severely and spraying pesticide be taken if the mites were lightly occurred.

Key words: Phyllostachys pubescens, Aculus bambusae, Control, Low yielding pure bamboo stand