Nymphal development of Podisus nigrispinus (Heteroptera: Pentatomidae) on a mixed diet of artificial diet and larvae of Musca domestica (Diptera: Muscidae)
The predatory pentatomid Podisus nigrispinus is commonly found feeding on insect pests such as Thyrinteina arnobia, a major defoliator of Eucalyptus spp. in Brazil. Besides Lepidoptera larvae, this predator has been reared on Musca domestica larvae.A study was carried out to try and reduce reliance on living preys to rear P. nigrispinus. Insects were reared, partially, on an artificial diet of cattle liver and fat meat, sucrose and liquefied Bombyx mori and later with M. domestica larvae. Treatments were: (1) artificial diet during 2nd instar; (2) artificial diet during 2nd and 3rd instars; (3) artificial diet during 2nd, 3rd and 4th instars and (4) M. domestica larvae during all instars, as a control. In all treatments, the nymphal cycle was completed with M. domestica larvae. Periods of nymphal development ranged from 21.09 to 23.67 days, between treatments. Viability of nymphs ranged from 67.8 to 87.8 percent, with the lowest value in treatment (4). The weights of male adults showed no significant differences between treatments, but females reared on M. domestica larvae were significantly lighter. This is the first successful artificial diet used, partially, to rear P. nigrispinus, in Brazil.
| Main Authors: | , , , |
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| Format: | biblioteca |
| Published: |
1996
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| Subjects: | PODISUS, MUSCA DOMESTICA, ARBOLES FORESTALES, PLAGAS FORESTALES, DEPREDADORES, ENEMIGOS NATURALES, DIETA, TECNICAS DE CRIANZA, ENTOMOLOGIA, COSTA RICA, |
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