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通过柑桔正常春梢和受害春梢生长模型的比较,研究始叶螨对柑桔春梢的为害。发现春梢受害大小与叶龄、螨量和环境因素等有关。在春梢叶片生长期间,如受害较早且不很严重叶片本身有较强的补偿能力。柑桔春梢受害大小可用有效光合面积减少百分率=[(健叶面积-受害叶面积)+坏死斑面积/健叶面积]×(1-补偿率)+落叶百分率来估计
Through the normal spring shoots of citrus and victim shoots growth model comparison, the beginning of spider mite on the citrus spring shoot damage. The size of spring shoots was found to be related to leaf age, mite amount and environmental factors. During the shoot growth of spring shoots, the leaf itself has a strong compensatory ability such as being harmed earlier and less severe. The percentage of the available photosynthetic area of citrus was lower than that of the effective photosynthetic area = [(healthy leaf area-affected leaf area) + necrotic area / leaf area] × (1-compensation rate) + deciduous percentage