Biological Control of Grape Root Borer (Lepidoptera: Sesiidae) with Commercially Available Entomopathogenic Nematodes in Florida Muscadine and ‘Cynthiana' Grapes

Said, Reem M.; Hix, Raymond L.; Reitz, Stuart R.

doi:10.18474/je312-37.1

Cited by 6 publications

(8 citation statements)

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“…The antagonism between plant-parasitic nematodes and EPNs is of particular interest for two reasons: first, for the search of new alternatives to supplant or complement the use of chemical products to control nematode pests; sec ondly, the fact that NEPs are already commercially available for the control of insect pests in various countries (Said et al, 2015). This work analyzed the effect of the application of IJs, symbiotic bacteria and cell-free supernatants of EPNs on Argentine populations of N. aberrans and M. hapla, as well as on the biomass of host plants.…”

Section: Discussionmentioning

confidence: 99%

Effect of the entomopathogenic nematode-bacterial symbiont complex on Meloidogyne hapla and Nacobbus aberrans in short-term greenhouse trials

et al. 2018

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Meloidogyne hapla and Nacobbus aberrans are plant-parasitic nematodes that form galls in the roots of infected plants and cause important economic losses. Entomopathogenic nematodes (EPNs) of the genera Steinernema and Heterorhabditis infect and kill insects via toxins produced by their symbiotic bacteria. EPNs have shown to have an antagonistic effect on different plant-parasitic nematode species in field and greenhouse trials. The aim of the present work was to evaluate, in tomato plants in greenhouse, the effect of the application of three Argentine EPN isolates, their symbiotic bacteria and cell-free supernatants, on a population of M. hapla and two populations of N. aberrans. Sixty days after inoculation, the number of galls and egg masses, the nematode reproduction factor (RF) and plant biomass were calculated. None of the plant-parasitic nematode populations or plant biomass was affected by infective juvenile inoculation of the different EPN isolates. Bacterial action differed among populations; M. hapla was the most susceptible one, with a significant reduction in the number of galls, egg masses and RF caused by the application of the three bacterial strains. The most significant effect was produced by the cell-free supernatants on nematode RF, with reductions of 62-90%, caused by bacterial metabolites. The different inoculation alternatives of the EPN-bacterial symbiont complex tested in the present work (infective juveniles, bacteria and cell-free supernatant) are compared for the first time for plant-parasitic nematode species.

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Section: Discussionmentioning

confidence: 99%

Effect of the entomopathogenic nematode-bacterial symbiont complex on Meloidogyne hapla and Nacobbus aberrans in short-term greenhouse trials

et al. 2018

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“…For this study, pheromone and acoustic monitoring combined with excavation of soil or inspection of sectors of root systems in the soil near the trunks of vines were conducted in multiple areas of a vineyard at the Florida A&M University (FAMU) Center for Viticulture and Small Fruit Research. Presence of V. polistiformis in the vineyard has been reported previously [19,20,21]. The primary objective was to augment visual diagnoses of potential infestation by acoustic identification of vineyard areas containing bursts of vibrations with spectral and temporal patterns previously identified to have been produced by V. polistiformis larvae.…”

Section: Introductionmentioning

confidence: 87%

“…The 18.2 ha vineyard at the FAMU Center for Viticulture and Small Fruit Research has row lengths of 68.4 m, and row spacings of 3 m, with a density of 716 plants/ha [19]. Of 31 different Vitis rotundifolia Michaux vines from which acoustic recordings were collected in the study, 22 were Stover variety from the General Management Practices block.…”

Section: Methodsmentioning

confidence: 99%

“…They reported low levels of larval and pupal mortality, however, and suggested that naturally occurring nematode populations would not be large enough for proper control; consequently, the natural populations would need to be augmented. In later studies, application of predatory nematodes of the genera Heterorhabditis and Steinernema showed promising results against V. polistiformis larvae [18,19]. Hix [20,21] reported that Heterorhabditis bacteriophora (Poinar) and H. megidis Poinar, Jackson and Klein can control V. polistiformis .…”

Section: Introductionmentioning

confidence: 99%

“…Hix [20,21] reported that Heterorhabditis bacteriophora (Poinar) and H. megidis Poinar, Jackson and Klein can control V. polistiformis . Said [19] found that both species were effective when delivered through drip irrigation.…”

Section: Introductionmentioning

confidence: 99%

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Subterranean Acoustic Activity Patterns of Vitacea polistiformis (Lepidoptera: Sesiidae) in Relation to Abiotic and Biotic Factors

Inyang

Hix

Tsolova

et al. 2019

Insects

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Grape root borer (GRB), Vitacea polistiformis, is a root-feeding pest of grapevines in the US southeast that causes underground damage well before vines show visible symptoms. A 269-d study was conducted at 31 sites in a Florida vineyard to record short bursts of insect movement and feeding vibrations in grapevine root systems and provide information that can improve timing and targeting of GRB management efforts. Characteristic spectral and temporal patterns in the subterranean vibrations facilitated discrimination of GRB from background noise and non-targeted arthropods. Infestation likelihood of GRB at each site was estimated from previous studies relating infestation to burst rate. In all, 39% of recordings indicated low infestation likelihood. Sites with medium or high infestation likelihood were confined to a small region of the vineyard where a vine with larval feeding damage was confirmed. The restricted area suggests that the biological control or chemical treatments could be reduced elsewhere. Acoustic activity was significantly greater in fall and winter than in spring, and greater in evening than afternoon; fall evenings seemed best for GRB acoustic surveys. The GRB seasonal and circadian acoustic variation reflected phenological variation in grape root growth and nutrients and was not significantly correlated with temperature.

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Microbial-Based Products and Soil Management Practices to Control Nematodes in Organic Horticultural Crops

Kozacki,

Soika,

Skwiercz

et al. 2024

Sustainability in Plant and Crop Protection

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Biological Control of Grape Root Borer (Lepidoptera: Sesiidae) with Commercially Available Entomopathogenic Nematodes in Florida Muscadine and ‘Cynthiana' Grapes

Cited by 6 publications

References 0 publications

Effect of the entomopathogenic nematode-bacterial symbiont complex on Meloidogyne hapla and Nacobbus aberrans in short-term greenhouse trials

Effect of the entomopathogenic nematode-bacterial symbiont complex on Meloidogyne hapla and Nacobbus aberrans in short-term greenhouse trials

Subterranean Acoustic Activity Patterns of Vitacea polistiformis (Lepidoptera: Sesiidae) in Relation to Abiotic and Biotic Factors

Microbial-Based Products and Soil Management Practices to Control Nematodes in Organic Horticultural Crops

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