Título:	Behavioral aspects of Helicoverpa armigera in the cotton vegetative phase.
Autoria:	RODRIGUES, S. M. M. SANTOS, N. do C. PITTA, R. M. CORASSA, J. de N.
Afiliação:	SANDRA MARIA MORAIS RODRIGUES, CNPAT; Nubia do Carmo Santos, Universidade Federal de Mato Grosso - UFMS/Instituto de Ciências Agrárias e Ambientais; RAFAEL MAJOR PITTA, CPAMT; Janaína de Nadai Corassa, Universidade Federal de Mato Grosso - UFMS/Instituto de Ciências Agrárias e Ambientais.
Ano de publicação:	2019
Referência:	Pesquisa Agropecuária Tropical, v. 49, e55628, 2019.
Conteúdo:	Helicoverpa armigera (Hübner) is part of an important complex of insects-pests that attack the cotton crop. This study aimed to identify the preferential plant parts for the oviposition of moths, as well as the movement and feeding behavior of caterpillars, in the vegetative phase of the cotton cultivar BRS 369 RF. Plants emitting floral buds were used to study the oviposition behavior of moths. For this, a completely randomized design, with three treatments (adaxial and abaxial sides of the leaf and floral buds) and twenty replications (plants in pots), was used. In order to evaluate the behavior of the caterpillars in the cotton vegetative phase, another 3 × 5 factorial design, with nine replications, was used. The treatments were three ages (first, second and third instars) combined with five behaviors (walking, resting, waving, eating and drop-off). In this trial, the period of the day when caterpillars are more active was also evaluated. It was observed that H. armigera moths prefer to lay their eggs on the adaxial leaf side and on the last two nodes of the plant, in a descending direction. The adaxial leaf side is also the part of the plant preferred by caterpillars for walking, eating and resting, being this last behavior the most frequent in all instars. In general, the caterpillars walk more in the morning.
Thesagro:	Gossypium Hirsutum
NAL Thesaurus:	Animal behavior
Palavras-chave:	Heliothinae Ethology Etologia
Notas:	Título em português: Aspectos comportamentais de Helicoverpa armigera na fase vegetativa do algodoeiro.
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPA)