CAJ | 학술논문

对赣南地区湿地松粉蚧林间消长规律进行调查研究，结果表明：湿地松粉蚧上半年虫态整齐，种群密度大；下半年世代重叠，种群密度小；全年粉蚧种群密度变化呈单峰型，林间的有虫松梢率变化也呈单峰型。树冠层粉蚧分布上层>中层>下层，但都无显著差异。
대공남지구습지송분개림간소장규률진행조사연구，결과표명：습지송분개상반년충태정제，충군밀도대；하반년세대중첩，충군밀도소；전년분개충군밀도변화정단봉형，림간적유충송소솔변화야정단봉형。수관층분개분포상층>중층>하층，단도무현저차이。
Population growth and decline rule of Oracella acuta in South Jiangxi was observed. Results showed as follows: The insect state in the first half year was neat, and the population density was large?The generations in the second half was overlapping, and the population density was small?The population density changes belonged to a single peak type, and changes of the worm pine shoot rate also showed the single peak type. The distribution trends of Oracella acuta on the crown layer showed upper>middle>lower, but there was no significant difference.