论文部分内容阅读
(接上期)四、形态识别1.柑橘锈螨。成螨橘黄色,胡萝卜形,体长0.1~0.2毫米。头细小前伸,具颚须2对。头胸部背面平滑,有足2对。腹部密生环纹,背部环纹28个,腹面约58个,腹末端生长纤毛1对。卵灰白色,圆球形,极微小,直径约0.04毫米,半透明,表面光滑。幼螨灰白色,楔形,半透明,光滑,环纹不明显,足2对。若螨淡黄色,体型似幼螨,约大1倍,足2对。2.柑橘瘿螨。成螨橙黄色,体长约0.18毫米,宽约0.05毫米。头、胸合并,短而宽。腹部呈筒状,细长。口器前伸,筒状,侧生下颚须1对,足2对。下颚须
(Continued) Fourth, morphological identification 1. Citrus rust mites. Adult mites orange, carrot-shaped body length of 0.1 to 0.2 mm. Small head extension, with jaws 2 pairs. The back of the head and chest smooth, there are two pairs of feet. Belly dense ring, back loop 28, about 58 ventral, ciliary end of the growth of a pair of cilia. Oval white, spherical, very small, about 0.04 mm in diameter, translucent, smooth surface. Young mites gray-white, wedge-shaped, translucent, smooth, ring pattern is not obvious, enough 2 pairs. If the mite pale yellow, the body shape is similar to the young mite, about 1 times larger, enough 2 pairs. 2. Citrus scabies mites. Adult mites orange yellow body length of about 0.18 mm, 0.05 mm wide. Head, chest merge, short and wide. Abdomen was cylindrical, slender. Stomach mouth anterior extension, tubular, side jaws to be a pair of feet 2 pairs. Under the jaws