BIOLOGY AND FUNCTIONAL RESPONSE OF Ceraeochrysa cubana (HAGEN) (NEUROPTERA: CHRYSOPIDAE) FED ON Aphis gossypii GLOVER (HEMIPTERA: APHIDIDAE) ON CUCUMBER IN GREENHOUSE / BIOLOGIA E RESPOSTA FUNCIONAL DE Ceraeochrysa cubana (HAGEN) (NEUROPTERA: CHRYSOPIDAE) ALIMENTADA COM Aphys gossypii GLOVER (HEMIPTERA: APHIDIDAE)EM PLANTAS DE PEPINO EM CULTIVO PROTEGIDO.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

This work aimed to evaluate some biologicals aspects of larval and adult stages of Ceraeochrysa cubana the predatory capacity and functional response of larvae fed with Aphis gossypii reared on cucumber leafs cultivar âCaipiraâ in greenhouse For essays of biology we released in each plant previously infested with A gossypii a larvae of first instar C cubana diarialy its observing development until the adult death which was fed diet prepared with weast and honey For essays of predatory capacity lacewings larvae were released in cucumber plants infested with 200 aphids of third and fourth instars in staying contact with these prey for 24 h and evaluating the number of aphids consumed in this interval of time For the functional response was released in each cucumber plants with A gossypii nymph in five differents densities freedom a larvae of predator The first second and third instars and all the larval stage mean had a duration of 10.3 10.4 10.1 and 30.5 days and a survival rate of 100.0 94.3 96.9 e 85.3 % respectively The pupal stage lasted a mean of 21.9 days had survival rate of 96.4% and the sexual reason was 0.7 The longevity was 127 days for male and 93 days for female with mean fecundity of 3 eggs/female/day and survival rate of 71.9% The mean consumption of aphids for C cubana larvae in the first second and third instars was 36.5 55.1 and 125.6 respectively and the functional response was Type II for the three instars The search time was 11â06â to first 6â11â to second and 5â01â to third instar and the handling time was 26â28â 4â37â and 2â07â respectively

ASSUNTO(S)

pepino lacewing predator predador greenhouse biological control entomologia agricola pulgÃo cucumber aphid crisopÃdeo controle biolÃgico casa-de-vegetaÃÃo

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