苹果“皮孔陷斑病”的识别及防治方法苹果“皮孔陷斑病”是在元帅系苹果上发生较多的一种生理病害。该病在发病初期，病果上出现以皮孔为园心似针尖大小的红色小点，以后慢慢由皮孔内外扩展，后期该病点逐渐变为褐色，一般直径在３～５ｍｍ左右；病斑仅限于果皮，且病斑数... Identification and Prevention and Cure Methods of Apple “Phlox Sulcotic Disease” Apple “Phloem Sulcus Spot Disease” is a kind of physiological disease that occurs on the mandarin apples. The disease in the early stages of disease appear on the skin and lenticels as the center of the needle tip size of small red dots, and later slowly by the skin inside and outside the expansion of the disease gradually become brown later, the general diameter of about 3 ~ 5mm; Lesions are limited to peel, and the number of lesions ...