Diapause in the Chrysomelidae

Temperature-dependent development in Chrysomela vigintipunctata (Coleoptera: Chrysomelidae), a stenothermal early-season breeder

“…Univoltine life cycles with an adult aestival-hibernal diapause are quite common among temperate leaf beetles (Cox, 1994), but other willow-feeding species usually undergo diapause later in the season than C. vigintipunctata (Topp, 1997). Diapause in C. vigintipunctata was reported to be obligatory and to terminate no sooner than in spring (Topp, 1997).…”

Predação de sementes de Allagoptera arenaria (Gomes) O'Kuntze (Arecaceae) por Pachymerus nucleorum Fabricius (Coleoptera, Chrysomelidae, Bruchinae)

“…Embora o ciclo de vida em A arenaria não tenha sido acompanhado integralmente, a emergência de adultos nessa palmeira com intervalos tão diferentes de tempo pode sugerir uma diapausa em algum estágio do ciclo de vida. Em Coleoptera, a diapausa no estágio de pré-pupa é muito rara e nunca foi registrada no estágio de pupa (Cox 1994). São poucos os registros para diapausa em bruquíneos, como por exemplo, para Acanthoscelides alboscutellatus Horn, 1873 (Ott 1991) e Caryedon sp.…”

Thermal requirements, field mortality and population phenology modelling of Paropsis atomaria Olivier, an emergent pest in subtropical hardwood plantations

“…Understanding the life history and population dynamics of pests is paramount to achieving their long-term management (Cox, 1994;Nylin, 2001), while seasonal predictability of the appearance and duration of susceptible life stages is essential for effective application of control measures. Further, the requirements for accurate forest health reporting (Stone and Coops, 2004), certification of forests for sustainability (Stone and Coops, 2004;Govender, 2002), and the contentiousness of pesticide use (Jenkin and Tomkins, 2006), mean that effective targeted management strategies are important.…”