Biology of Anoplophora malasiaca
In Japan, studies were carried out in the laboratory on the biology of Anoplophora malasiaca (EPPO A1 quarantine pest) under a varying temperature regime simulating day and seasonal fluctuations of natural temperatures, and under 3 constant temperatures (20, 25 and 30 °C). The photoperiod applied was constant darkness, and insect were fed with freshly cut citrus shoots. With fluctuating temperatures, more than 70 % of the larvae survived and required 1 or 2 years to complete their life cycle. The proportion of individuals with a 2-year life cycle increase as the oviposition time was delayed in the season. Most larvae spent several months without feeding before pupation. Adults emerged simultaneously in June irrespective of their life cycle type. At 20 °C, 57 % of the individuals completed their development and emerged as adults during the period from 306 to 704 days after oviposition. At 25 and 30 °C, all individuals eventually died during the larval stage. Estimates of the lower developmental threshold temperatures for eggs and young larvae were respectively, 6.7 and 11.6 °C.
Sources
Adachi, I. (1994) Development and life cycle of Anoplophora malasiaca (Thomson) (Coleoptera: Cerambycidae) on citrus trees under fluctuating and constant temperature regimes.
Applied Entomology and Zoology, 29(4), 485-497.