Combined Application of Entomopathogenic Nematodes and Insecticides in the Control of Leaf-Miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) on Tomato

Sabino, Paulo Henrique de Siqueira; Negrisoli, A. S.; Andaló, Vanessa; Filgueiras, Camila C.; Moino, Alcides; Sales, Fernanda Soares

doi:10.1007/s13744-018-0643-2

Cited by 10 publications

(12 citation statements)

References 26 publications

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“…In nematodes, the involvement of butyrylcholinesterase as a front line of defense was proposed because it may protect acetylcholinesterase from an early attack by its inhibitors 39 . Results of our study and some other reports suggest that several EPNs are compatible with many insecticides and hence can be used in combinations or mixtures in pest management programs [11][12][13]21,38 .…”

Section: Discussionsupporting

confidence: 72%

“…Many insect pests including armyworms, Spodoptera spp., have been reported to develop resistance against the insecticides used in pest management programs 1,2,8 . Combining certain efficient techniques like biological control agents, especially EPNs, and insecticides can help address the challenges in management of certain pest insects in agriculture 7,12,13,21,25,35,36 .…”

Section: Discussionmentioning

confidence: 99%

“…The replications were performed with new insecticide solutions of same concentrations but prepared at a different time under same set of conditions. Non-responding EPNs upon touching with a probe or dissecting needle were considered dead from the treatment 7,12,21,25,26 . Mortality of the IJs was determined after 48, 72, and 96 h. The insecticides resulting in less than 25% mortality were denoted as harmless or least toxic 32 .…”

Section: Toxicity Of Insecticides To Epnsmentioning

confidence: 99%

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Additive interactions of some reduced-risk biocides and two entomopathogenic nematodes suggest implications for integrated control of Spodoptera litura (Lepidoptera: Noctuidae)

Khan

Arshad

Aslam

2021

Sci Rep

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Higher volumes of conventional and novel chemical insecticides are applied by farmers to control resistant strains of armyworm (Spodoperta litura) in Pakistan without knowing their risks to the environment and to public health. Ten reduced-risk insecticides were tested for their compatibility with two entomopathogenic nematodes (EPNs); Heterorhabditis indica and Steinernema carpocapsae against S. litura. The insecticide emamectin benzoate was highly toxic (LC50 = 2.97 mg/l) against 3rd instar S. litura larvae when applied alone whereas, novaluron and methoxyfenozide were the least toxic (LC50 = 29.56 mg/l and 21.06 mg/l), respectively. All the insecticides proved harmless against the two EPNs even 96 h after treatment. Indoxacarb, flubendiamide and spinetoram produced the greatest mortalities (72–76%) of S. litura larvae after 72 h when applied in mixtures with H. indica. Lowest mortalities (44.00 ± 3.74% and 48.00 ± 2.89) were observed for mixtures of H. indica with methoxyfenozide and chlorfenapyr, respectively. The positive control treatments with both EPNs (S. carpocapsae and H. indica) produced > 50% mortality 96 h after treatment. For insecticide mixtures with S. carpocapsae, only indoxacarb produced 90% mortality of larvae, whereas, indoxacarb, flubendiamide, emamectin benzoate, and spinetoram produced 90–92% mortality of larvae when applied in mixtures with H. indica. Additive interactions (Chi-square < 3.84) of EPN mixtures with reduced volumes of reduced-risk insecticides suggest opportunities to develop more environmentally favorable pest management programs for S. litura.

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Section: Discussionsupporting

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Toxicity Of Insecticides To Epnsmentioning

confidence: 99%

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Additive interactions of some reduced-risk biocides and two entomopathogenic nematodes suggest implications for integrated control of Spodoptera litura (Lepidoptera: Noctuidae)

Khan

Arshad

Aslam

2021

Sci Rep

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“…Previous investigations demonstrated that insecticides with active component based on thiametoxam, imidacloprid and chlorantraniliprole did not have adverse impact on the infectivity and viability of EPNs. [41][42][43] From an applied side, recommending lower chemical pesticide rates may face regulatory hurdles resulting from insecticide resistance potential. However, we make a case that lower insecticide rates that produce overall mortality levels as a consequence of synergy, when combined with EPNs, will reduce the chances of resistance while providing superior pest control.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of chemical and microbial control options for Pangaeus bilineatus (Say) (Hemiptera: Cydnidae) infesting peanut crop

Mbata

Shapiro‐Ilan

2022

Pest Management Science

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BACKGROUND: The peanut burrower bug, Pangaeus bilineatus is a major crop pest of peanuts in the southern United States. Peanuts infested by P. bilineatus exhibit weight and quality losses and could be discounted by ≤50% of the prevailing market price. Control of this pest is difficult because it attacks peanut pods underground, thus rendering foliar pesticide applications ineffective. Integration of entomopathogenic fungi and nematodes (EPF/EPNs) with chemical insecticides in the management of P. bilineatus was investigated as a potential integrated pest management containment tool.RESULTS: The nymphs were less susceptible than adults of P. bilineatus to EPNs. Comparison of six strains of both Heterorhabditis spp. and Steinernema spp. demonstrated that Steinernema carpocapsae (All) was the most virulent EPN, causing 75.54% mortality of P. bilineatus adults after 7 days postinoculation (dpi), whereas the mortality generated by the application of the rest of the nematodes ranged between 17.03% (H. bacteriophora -Lewis) and 50% (H. bacteriophora VS). Application of imidacloprid by itself at ½FR (field rate) did not result in any significant mortality of P. bilineatus adults but application of chlorpyrifos at 1/8FR caused significant mortality (27.41-61.35%) at 7-14 dpi. However, combined applications of S. carpocapsae and imidacloprid resulted in significant mortality starting at 3 dpi. The interactions between S. carpocapsae and imidacloprid were synergistic at 3-5 dpi, but became additive at 7-14 dpi. Both chlorpyrifos and imidacloprid did not negatively impact the reproduction of S. carpocapsae. CONCLUSION:The compatibility between S. carpocapsae and imidacloprid makes a case for the combination to be used for the management of P. bilineatus.

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“…EPNs can be applied with standard spray equipment used for pesticides, they can resist shear stress, they can be applied simultaneously with many pesticides, and they can be mass-produced to manage with a broad host range (Wright et al, 2005;Garcia-del-Pino et al, 2013;van Niekerk & Malan, 2014;Sabino et al, 2019). Although they have many advantages, high production costs and limited shelf life are still significant obstacles to the large-scale application (Grewal, 2000;Perry et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Comparison of hermaphrodites of hybrid Heterorhabditis bacteriophora Poinar, 1976 (Rhabditida: Heterorhabditidae) HBH strain and its parents on reproduction capacity

Ulu¹,

Özbudak²,

Düzenli³

et al. 2021

Turkish Journal of Entomology

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Entomopathogenic nematodes (EPNs) are microscopic roundworms used in biocontrol. EPNs are obligate insect parasites, they live in soil, and they are especially effective against soilborne insects. They are a good alternative to chemical pesticides thanks to their advantages, such as prolonged longevity, broad host range and mass production suitability. However, EPNs cannot compete with chemical pesticides due to high production costs and short shelf life. The aim of this study was to determine the reproduction capacity of the Turkish hybrid Heterorhabditis bacteriophora Poinar, 1976 (Rhabditida: Heterorhabditidae) HBH strain and then compare it with its parents to improve its liquid culture yield. In this way, it is aimed to reveal the effects behind the high reproduction potential of the hybrid HBH strain. All experiments were performed at Bursa Uludağ University, Faculty of Agriculture, Department of Plant Protection, in 2020. All cadavers were periodically dissected, hermaphrodites were counted and their body lengths were measured. Compared to its parents, the hybrid HBH strain had greater hermaphrodite counts, with mean 66 individuals within 12 days, and hermaphrodite body length, with mean 3.88 mm. The results obtained from this study should provide information for commercial EPN production development.

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Combined Application of Entomopathogenic Nematodes and Insecticides in the Control of Leaf-Miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) on Tomato

Cited by 10 publications

References 26 publications

Additive interactions of some reduced-risk biocides and two entomopathogenic nematodes suggest implications for integrated control of Spodoptera litura (Lepidoptera: Noctuidae)

Additive interactions of some reduced-risk biocides and two entomopathogenic nematodes suggest implications for integrated control of Spodoptera litura (Lepidoptera: Noctuidae)

Evaluation of chemical and microbial control options for Pangaeus bilineatus (Say) (Hemiptera: Cydnidae) infesting peanut crop

Comparison of hermaphrodites of hybrid Heterorhabditis bacteriophora Poinar, 1976 (Rhabditida: Heterorhabditidae) HBH strain and its parents on reproduction capacity

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