Field performance of the parasitoid wasp, Trichogrammatoidea armigera (Hymenoptera: Trichogrammatidae) following releases against the millet head miner, Heliocheilus albipunctella (Lepidoptera: Noctuidae) in the Sahel

Karimoune, Laouali; Bâ, M.; Baoua, Ibrahim; Muniappan, R.

doi:10.1007/s10526-020-10015-0

Cited by 6 publications

(2 citation statements)

References 61 publications

(92 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This corresponds to 100 sorghum plants infested in each plot (25%). The plants were infested 2 weeks after planting using the sentinel egg technique [20,33,34]. Freshly laid egg masses of FAW were removed from sorghum leaves in the laboratory culture, taken to the field, and pasted to the upper face of sorghum leaves with nontoxic glue to mimic naturally laid eggs.…”

Section: On-station Releasesmentioning

confidence: 99%

Parasitism of Locally Recruited Egg Parasitoids of the Fall Armyworm in Africa

Laminou

Ba²,

Karimoune³

et al. 2020

Insects

Self Cite

View full text Add to dashboard Cite

The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is an insect native to the tropical and subtropical Americas that has recently spread to Africa, where it predominately attacks maize, sorghum and other plant species. Biological control is an environmentally friendly way of combatting the pest and contributes to an integrated pest management approach. In Africa, several trichogrammatid parasitoids and Telenomus remus Nixon (Hymenoptera: Platygastridae) have been found parasitizing eggs of the FAW. In Niger, the egg parasitoids encountered include Trichogrammatoidea sp. (Hymenoptera: Trichogrammatidae) and Telenomus remus Nixon. Parasitism of the FAW eggs by the two egg parasitoids was assessed in the laboratory, followed by field testing on sentinel eggs. In the laboratory, T. remus parasitized on average 78% of FAW eggs, compared to 25% for Trichogrammatoidea sp. Telenomus remus was able to parasitize egg masses that were fully covered with scales, while Trichogrammatoidea sp. parasitized only uncovered egg masses. On-farm releases of T. remus in sorghum fields caused up to 64% of FAW egg parasitism. Parasitized eggs yielded viable progeny, which can contribute to FAW egg parasitism build-up during the cropping season. Our findings lay the groundwork for the use of T. remus in augmentative releases against FAW in Africa.

show abstract

Section: On-station Releasesmentioning

confidence: 99%

Parasitism of Locally Recruited Egg Parasitoids of the Fall Armyworm in Africa

Laminou

Ba²,

Karimoune³

et al. 2020

Insects

Self Cite

View full text Add to dashboard Cite

show abstract

“…Functional response studies are essential to determine the searching efficiency of a given natural enemy, however, they need to be corroborated through field studies. Other characteristics like spatial complexity in nature, host traits, biotic and abiotic factors and plant varieties can also influence the behaviour and efficiency of natural enemies (Karimoune et al, 2020; Manohar et al, 2020; Silva et al, 2022). It is reported that the maximum parasitism of a high‐temperature tolerant strain and local Ludhiana strain of T. chilonis showed a negative and positive correlation with temperature and relative humidity, respectively (Singh & Shenhmar, 2008).…”

Section: Discussionmentioning

confidence: 99%

Impact of different Trichogramma chilonis populations from sugarcane fields on parasitism of Corcyra cephalonica

Qin,

Li,

Luo

et al. 2023

J Applied Entomology

View full text Add to dashboard Cite

Trichogramma chilonis Ishii (Hymenoptera: Trichogrammatidae) is the most important parasitoid of sugarcane borers in China. T. chilonis are produced from either rearing on Corcyra cephalonica (Stainton) (Hymenoptera: Galleriidae) eggs in the laboratory or at factory level and released into the field to control sugarcane borers in China. Limited reports on the efficacy of different populations of T. chilonis in the sugarcane field against C. cephalonica are available. This study reports the parasitism efficacy and functional response of different T. chilonis populations against C. cephalonica under laboratory conditions. The number of eggs parasitized by the laboratory population of T. chilonis (total 57.05 eggs) on C. cephalonica was the highest among the different populations investigated; parasitism by the Baise population was the lowest (total 21.30 eggs). The parasitoid emergence rate of T. chilonis Baise population on C. cephalonica (102.16%) was the highest among the different populations, whereas that from the C. cephalonica laboratory population was the lowest (84.73%). The sex ratio (female/male) of T. chilonis laboratory population (3.51) was significantly higher than the other three sugarcane field populations. The functional responses of T. chilonis on C. cephalonica were determined as Holling type II. The search rate of T. chilonis laboratory population (1.0392) parasitizing on the eggs of C. cephalonica was higher than other Trichogramma populations, whereas the handling time (0.00809) was shorter than that of the other populations. The results from this study indicate that the origin of the population of T. chilonis can affect its parasitic ability upon C. cephalonica; therefore, further evaluation for control efficacy of different populations of T. chilonis against sugarcane borers, especially in the field, is warranted.

show abstract