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versión On-line ISSN 2477-9105
Resumen
PAREDES GUEVARA, Erika Viviana y MUNOZ BUNAY, Diego Armando. Notes on the biology and breeding of Podisus sp. (hemiptera: pentatomidae), a predator of Gonipterus sp., associated with Eucalyptus plantations. Perfiles [online]. 2024, vol.1, n.31, pp.74-80. ISSN 2477-9105. https://doi.org/10.47187/perf.v1i31.275.
Currently, on Eucalyptus plantations in Ecuador, the most important pest is Gonipterus sp., and chemical control is the most common practice, but its high cost and inefficiency have led the timber industry to seek alternatives such as biological control. The objective of this research was to understand aspects related to the biology and ecology of Podisus sp., a natural predator of Gonipterus sp. These species were collected in NOVOPAN plantations located in the Imbabura province and then transferred to the GDETERRA-ESPOCH laboratory. Podisus sp. was reared in 100-ml airtight containers at a temperature of 22 °C and a relative humidity of 43%. Initially, they were fed Gonipterus sp. Larvae, and alternatively, larvae of Spodoptera frugiperda. Results revealed a biological cycle from egg to adult of 40 - 45 days, adult longevity of 75 days, and egg production of 30 - 35 per female. Due to insufficient larvae of Gonipterus sp., larvae of Spodoptera frugiperda were used as an alternative food source. The study concludes that it is feasible to rear Podisus sp. under controlled conditions using larvae of both Gonipterus sp. and Spodoptera frugiperda, with the latter being more efficient due to its availability.
Palabras clave : Hemiptera; predator; biological cycle; nymphal stages; plague; rearing.