Trichogramma yousufi sp. nov. Employed for the Management of Spodoptera exigua and Spodoptera litura in Indonesia

Indirect defense is an important strategy employed by sessile plants to defend against herbivorous insects by recruiting the natural enemies of herbivores mediated by herbivore-induced plant volatiles (HIPVs). We aimed to determine whether indirect defense occurs in Compositae with Chrysanthemum morifolium as the model and elucidate the mechanisms underlying the biosynthesis of HIPVs. Using two-choice olfactometer bioassays, we showed that C. morifolium plants following infestation by larvae of the tobacco cutworm (Spodoptera litura, TCW) were significantly more attractive to two natural enemies of TCW larvae than control plants, indicating that indirect defense is an active defense strategy of C. morifolium. The chemical cue responsible for indirect defense in C. morifolium was identified as a complex blend of volatiles predominated by sesquiterpenes and monoterpenes. A total of 11 candidate terpene synthase (TPS) genes were identified by comparing the transcriptomes of healthy and TCW-infested plants. Gene expression analysis confirmed that up-regulated CmjTPS genes are consistent with the elevated emission of terpenes after herbivory treatment. Our study showed that the herbivore-induced emission of JA-dependent volatile terpenes attracted both predatory and parasitic enemies of herbivores. Generally, our findings indicate that indirect defense might be an important defense mechanism against insects in C. morifolium.

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“…T. pretiosum is an egg parasite that lays its eggs in TCW eggs, whereas A. chinensis directly preys on TCW larvae .…”

Section: Discussionmentioning

confidence: 99%

“…21,40 T. pretiosum and A. chinensis are two natural enemies of TCW. T. pretiosum is an egg parasite that lays its eggs in TCW eggs, 41 whereas A. chinensis directly preys on TCW larvae. 42 The release of volatiles mediated by TCW infestation plays an important role in natural enemy attraction.…”

Section: Discussionmentioning

confidence: 99%

Herbivory-Induced Emission of Volatile Terpenes in Chrysanthemum morifolium Functions as an Indirect Defense against Spodoptera litura Larvae by Attracting Natural Enemies

Jiang

Chen

et al. 2021

J. Agric. Food Chem.

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“…Furthermore, the study of the biology of N. platensis fed on P. oleracea could generate information for integrated management programs for this pest. Example, the identification of first eggs of this pest in the field and knowledge of the egg stage period (in days) could determine the need and the period of release of egg parasitoids, such as Trichogramma Westwood (Hymenoptera: Trichogrammatidae) (Khan et al, 2020) and the requirement to install a higher number of light traps to capture their adults for monitoring and population reduction (Specht and Corseuil, 2002).…”

Section: Rearing Of N Platensismentioning

confidence: 99%

Infestation of Portulaca oleracea (Portulacaceae) plants by Neotuerta platensis (Lepidoptera: Noctuidae) larvae in Brazil: evaluations for five consecutive years

et al. 2024

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The bioecology and infestation aspects of Neotuerta platensis Berg, 1882 (Lepidoptera: Noctuidae) on plants are poorly known. This insect fed on the leaves of common purslane, Portulaca oleracea L. (Portulacaceae) for two consecutive years, which triggered its study in the following five years in Januária, Minas Gerais State, Brazil. The objective of this work was to study the bioecology and infestation aspects of N. platensis on P. oleracea plants in the field and laboratory. The mean duration (± SD) of the egg, larva and pupa stages was 3.6 ± 0.89, 11.5 ± 2.81 and 10.7 ± 1.97 days, respectively. The mean numbers of egg masses and eggs per female (± SD) were 3.8 ± 1.16 and 891.6 ± 116.83, respectively. The percentage of infested plants was 59, 74, 0, 78 and 75% and the mean numbers of larvae per plant (± SD) ranged from 0.7 ± 0.45 to 1.6 ± 0.49 individuals, respectively from 2015 to 2019. Neotuerta platensis larvae infested P. oleracea plants in four out of five years evaluated.

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“…(Tenebrionidae) (TAVARES et al, 2020b), and caterpillars of Parasa pastoralis Butler, 1885 (Limacodidae) and Spodoptera spp. (Noctuidae) (SULISTYONO et al, 2020;KHAN et al, 2020). Auletobius sp.…”

Section: Introductionmentioning

confidence: 99%

First report of Ophiusa disjungens (Walker, 1858) on Acacia mangium Willd. (Fabaceae), and damage and notes of its biology on Eucalyptus (Myrtaceae) commercial plantations in Sumatra, Indonesia (Lepidoptera: Erebidae)

Raimon¹,

Laksamana

Simulingga

et al. 2020

SHILAP Revta. lepid.

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Acacia mangium Willd. (Fabaceae), Eucalyptus pellita F. Muell. and Eucalyptus grandis W. Hill ex Maiden (Myrtaceae) are largely planted in Sumatra, Indonesia, where they are used as a raw material to produce commodities such as paper, pulp and viscose. Acacia and Eucalyptus are attacked by several species of defoliating Coleoptera and Lepidoptera in Sumatra. The objectives of this study were to report, for the first time, the guava moth, Ophiusa disjungens (Walker, 1858) on A. mangium, and damage and notes of its biology on Eucalyptus commercial plantations in Sumatra. Ophiusa disjungens on six- and seven-month-old A. mangium had an average of three larvae per tree in two commercial stands in Peranap Sector, Riau, Sumatra, on April 2018. The incidence of caterpillars and/or fresh damage (defoliation) of this pest on one-, three- to seven-, nine-, and 10-month old E. pellita and E. grandis ∞ E. pellita ranged 4.0–80.2% within 18 commercial stands in Sei Kebaro Sector, Riau, on April 2020. Caterpillars reared in a laboratory had period from pupa to adult (mean ± SD) of 25.5 ± 4.5 days. Ophiusa disjungens is reported for the first time on A. mangium, and incidence of its caterpillars and/or damage (defoliation) on Eucalyptus is up to 80.2% in Sumatra.

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Trichogramma yousufi sp. nov. Employed for the Management of Spodoptera exigua and Spodoptera litura in Indonesia

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 5 publications

References 25 publications

Herbivory-Induced Emission of Volatile Terpenes in Chrysanthemum morifolium Functions as an Indirect Defense against Spodoptera litura Larvae by Attracting Natural Enemies

Herbivory-Induced Emission of Volatile Terpenes in Chrysanthemum morifolium Functions as an Indirect Defense against Spodoptera litura Larvae by Attracting Natural Enemies

Infestation of Portulaca oleracea (Portulacaceae) plants by Neotuerta platensis (Lepidoptera: Noctuidae) larvae in Brazil: evaluations for five consecutive years

First report of Ophiusa disjungens (Walker, 1858) on Acacia mangium Willd. (Fabaceae), and damage and notes of its biology on Eucalyptus (Myrtaceae) commercial plantations in Sumatra, Indonesia (Lepidoptera: Erebidae)

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