Consequences of Feeding Site Selection on Growth and Survival of Young Blackheaded Fireworm (Lepidoptera: Tortricidae)

Autor:	S. D. Cockfield, Daniel L. Mahr
Rok vydání:	1993
Předmět:	Tortricidae photoperiodism Larva animal structures Ecology biology Rhopobota naevana fungi biology.organism_classification Lepidoptera genitalia Horticulture Cutting Insect Science Botany Shoot Vaccinium macrocarpon Ecology Evolution Behavior and Systematics
Zdroj:	Environmental Entomology. 22:607-612
ISSN:	1938-2936 0046-225X
DOI:	10.1093/ee/22.3.607
Popis:	Young blackheaded fireworm, Rhopobota naevana (Hubner), feed on old leaves or, when available, new leaves of cranberry, Vaccinium macrocarpon Aiton. In laboratory choice experiments, first-instar caterpillars preferred new leaves to old leaves regardless of temperature and photoperiod or generation of larvae. In no-choice tests, more larvae died before feeding (61.4%) when exploring dormant cuttings with only old leaves than did those exploring growing cuttings (11.8%). Larvae continued to reject old leaves and climb to the top of shoots even when deprived of food. Duration of the first stadium was 65% longer on overwintered leaves compared with young leaves. Survival of larvae in commercial cranberry marshes was 4.9 times greater after new shoot growth than survival of larvae hatched before new growth.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c4f582bb7a470cd5c4e70f21136a6352 https://doi.org/10.1093/ee/22.3.607 Zobrazit plný text záznamu