Anonymous, N/A 1984 [Preliminary report on the biology and control of Asterococcus yunnanensis Borchs.]. Insect Knowledge 19(1982-3): 30-31.
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Notes: Preliminary observations were made in Sichuan Province, China, on the biology and control of Asterococcus yunnanensis Borkhs., a pest of several tree species including Pterocarya stenoptera. The scale insect had one generation a year and overwintered in the egg stage from January to April. Larvae appeared from early April to late May, and adults from June to November. Oviposition took place from early December to January. The most susceptible stage for control measures was the young larva.
