Páginas:
177-182 al 177-182
ISSN:
0304-3711
Palabras clave:
PENTATOMIDAE, HETEROPTERA, EUCALIPTO, DIPTERA
Resumen:
The predatory bug Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) es commonly found feeding on insect pests such as Thyrinteina arnobia (Lepidoptera: Geometridae), a major defoliator of Eucalyptus spp. in Brazil. Besides Lepidoptera larvae, this predator has been reared on Musca domestica (Diptera: Muscidae) larvae: This study aimed to reduce reliance on living preys to rear P. nigrispinus. Insects were reared, partially, in an artificial diet of cattle liver and fat meat, sucrose and liquefied Bombyx mori (Lepidoptera: Bombycidae) and later with M. Domestica larvae: Treatments were: 1) artificial diet during 2° instar;2) artificial diet during 2° and 3° instars; 3) artificial diet during 2°, 3° and 4° instars and 4) M. domestica larvae during all instars, as a control. In all treatments, nymphal cycle was completed with M. domestica larvae. Period of nymphal development ranged from 21.09 to 23.67 days, between treatments. Viability of nimphs renged from 67.8 to 87.8%, with the lowest value in the treatment four. Male adults weight showed no significantly differences between tretments, but females obtained with M. domestica larvae were significantly lighter. This is the first successful artificial diet used partially, to rear P. nigrispinus, in Brazil.
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