Effects of nutrition supplementation on the longevity and fecundity of Tuta absoluta
The tomato leafminer,Tuta absoluta(Meyrick),has become a global quarantine pest that has invaded China in year 2017.To obtain a robust and sustainable insect source,the impact of various nutritional supplements on the fecundity and longevity of T.absoluta adult was investigated.The results showed that the average number of eggs laid per female was higher when adults were supplemented with 5%honey[(263.4±13.17)eggs],5%glucose[(175.6±8.78)eggs],and 5%sucrose[(147.4±7.37)eggs].The survival duration of male and female adult of T.absoluta was notably influenced by the consumption of various nutrient sources.The longevity of female adults supplemented with 5%honey and 5%sucrose was(23±1.15)d and(22±1.1)d,respectively,higher than the treatment of 5%glucose and water control.Moreover,in the 5%honey treatment,their survival time was(21±1.05)d,which was higher than in other treatments,while it was(18±0.9)d in 5%sucrose and 5%glucose.The shortest survival time was observed in the water control treatment,with only(14±0.7)d.The survival durations of male adults under each treatment were lower than those observed in female adults.In summary,5%honey had a significant effect on the lifespan and egg production of T.absoluta adults and can be considered the best choice for adult supplementation.
Tuta absolutasupplementary nutritionfecunditylongevitysurvival rate