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有利于预防脐橙“脐黄”的技术措施“脐黄”是影响脐橙产量的主要因素之一，发生在５～１０月，发生率达２０％～３０％，个别年份或个别植株高达４０％～５０％，尤其是９～１０月的脐黄，对脐橙产量影响更大。现将有利于预防脐橙脐黄的技术措施简介如下。１防治各种病虫...
“Umbilical yellow” is one of the main factors that affect navel orange production. It occurs from May to October with a rate of 20% to 30%. In some individual or individual plants up to 40% 50% of umbilical yellow, especially from September to October, has a greater impact on navel orange production. Will now be conducive to the prevention of umbilical orange navel yellow technical measures are as follows. 1 control a variety of pests ...