Influence of a diet containing tobacco on the biology of Ephestia kuehniella (Lepidoptera: Pyralidae) and its parasitoid Habrobracon hebetor (Hymenoptera: Braconidae)

Pezzini, Cleder; Jahnke, Simone Mundstock; Köhler, Andreas

doi:10.14411/eje.2020.020

Cited by 6 publications

(2 citation statements)

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“…This adaptation has already been proven in a study that showed that H. hebetor presented a positive chemotactic response when responding to odors from different types of tobacco, especially to that of Virginia [25]. In addition, H. hebetor is able to reproduce and develop in the host reared on a diet containing tobacco [24]. Thus, although the offspring from released females has not been studied in the present study, there may have been offspring emergence and the second generation could reinforce the control of the target populations in warehouses.…”

Section: Discussionmentioning

confidence: 71%

“…Guenée (Lepidoptera: Pyralidae) [23]. In the laboratory, it is known that H. hebetor parasites fifth instar larvae of E. kuehniella fed on a tobacco diet [24], being attracted by the odors of different types of tobacco [25]. The attractiveness of tobacco volatiles to H. hebetor females may be due to the fact that the parasitoid recognizes the odor as the substrate where it is most likely to find its host [25].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Habrobracon hebetor (Hymenoptera: Braconidae) Release on Moth Infestation in Stored Tobacco

Pezzini

Zilch

Jahnke

et al. 2023

Braz. arch. biol. technol.

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During the storage period of dry tobacco and its derivatives, insect pests such as species of Ephestia Guenée (Lepidoptera: Pyralidae), popularly known as moths, cause damage to the product, being controlled mainly with physical practices and synthetic chemicals, although with limitations on their use and results. Some biological control agents, such as the parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae), have the potential to control these pests. This study aimed to evaluate the effect of H. hebetor release in tobacco farms and industrial warehouses, on the infestation of Ephestia spp. adults. Parasitoids were released in tobacco farmers and tobacco industry warehouses between 2016-2018, comprising two years/crop seasons. Each release consisted of 1,000 parasitoids (four times) in tobacco farmers warehouses (70 m 2 ) and 30,000 (five times) in tobacco industry warehouses (8,000 m 2 ). Pheromone-baited sticky traps were used to weekly monitor the average number of adults of Ephestia spp. in warehouses with (WP) and without parasitoid release (NP). The average number of adults of Ephestia spp. captured in the traps in WP environments at farmers and industry level was significantly lower than the average captured in NP from the third and fifth weeks. In the following weeks, the averages of Ephestia spp. were always significantly lower in the WP environments until the end of monitoring. Therefore, the use of H. hebetor for moth control should be considered as part of a biological control program in stored tobacco environments. HIGHLIGHTS• The H. hebetor parasitoid is effective to control the population of Ephestia spp.• The potential of H. hebetor in stored tobacco is recorded for the first time in Brazil.• H. hebetor can be part of an integrated pest management program in stored tobacco.

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Section: Discussionmentioning

confidence: 71%