Entomopathogenic Nematodes as Models for Inundative Biological Control

Shapiro‐Ilan, David I.; Hazır, Selçuk; Glazer, I.

doi:10.1079/9781789248814.0012

Cited by 7 publications

(6 citation statements)

References 112 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The efficacy of these applications would not appear, however, until the next season, when the impact of this mortality on the emerging cohort would become apparent. If entomopathogenic nematodes were effective, we would expect this to become apparent over the course of two to three years as we began to see in this study and as has been observed in other field settings [35,36]. In addition, our microcosm experiments also indicated that applications of entomopathogenic nematodes could reduce populations of C. sayi when introduced to the soil as larvae.…”

Section: Chestnut Weevil Managementsupporting

confidence: 71%

The Lesser Chestnut Weevil (Curculio sayi): Damage and Management with Biological Control Using Entomopathogenic Fungi and Entomopathogenic Nematodes

Filgueiras

Willett

2022

Insects

View full text Add to dashboard Cite

The lesser chestnut weevil, Curculio sayi (Gyllenhal), can cause irreparable damage to chestnuts through direct consumption and/or introduction of secondary pathogens. With the resurgence of blight resistant American Chestnut plantings both for commercial production and for habitat restoration, C. sayi has become a similarly resurgence pest. Here, we investigated the nature and extent of C. sayi larval damage on individual nuts and collected harvests with an eye toward the quantifying impacts. Next, we explored management options using biological control including entomopathogenic fungi and entomopathogenic nematodes. Nut damage from C. sayi can be extensive with individual nuts hosting several larvae, larvae emerging from nuts several weeks post harvest, and nut weight loss even after C. sayi have emerged from the nut. Applications of entomopathogenic fungi reduced chances of chestnut infestation, while certain strains of entomopathogenic nematodes increased the probability of C. sayi larval mortality. Understanding C. sayi damage and exploring biological control management options could be a useful tool in the effective management of this resurgent pest.

show abstract

Section: Chestnut Weevil Managementsupporting

confidence: 71%

The Lesser Chestnut Weevil (Curculio sayi): Damage and Management with Biological Control Using Entomopathogenic Fungi and Entomopathogenic Nematodes

Filgueiras

Willett

2022

Insects

View full text Add to dashboard Cite

show abstract

“…UVR may perturb the interactions between parasitoids, as their eggs appear to be sensitive to UV-A (Gaudreau et al, 2017) and these wavelengths can also affect foraging behaviour (Gaudreau et al, 2022). In addition, most entomopathogens are sensitive to UVR (Fernandes et al, 2015) as are entomopathogenic nematodes (Shapiro-Ilan et al, 2015), and…”

Section: Discussionmentioning

confidence: 99%

Arthropods and ultraviolet radiation: Survival, growth and development

Holford,

Parajuli,

Beattie

et al. 2024

Ecological Entomology

View full text Add to dashboard Cite

Ultraviolet radiation (UVR) has positive and negative impacts on organisms and affects entire ecosystems. It is currently receiving attention because of the interactions of UVR with changes in climate that are likely to affect agriculture and food security. A review is provided on the effects of different types of UVR on the survival, development and reproduction of insects, collembolans and mites. The foci are on how UVR is used in pest control and how it affects arthropod coloration and distribution. Direct exposure to UV‐A, UV‐B and UV‐C delays development and reduces survival and host‐seeking ability of arthropods; immature stages are more sensitive than the adults. Increased exposure of crops to UVR has indirect effects on herbivory, and regions with high UVR levels may permit crop production in the absence of certain pest insect species. The Bunsen‐Roscoe law of reciprocity was upheld for Diaphorina citri and Tetranychus urticae under the range of irradiances and durations of exposure used in two studies, which showed that, for a constant dose, the effects of low irradiances of long durations were equivalent to those of higher irradiances of shorter durations. DNA damage caused by UV‐C and UV‐B can be repaired by photoreactivation; both white light and UV‐A are effective.

show abstract

“…Significant deterioration in survival and infectivity [164] Radiation Wavelength of 366 nm No noticeable changes [166,167] Wavelength of 254 nm, with an exposure time of >1.75 min Reduced pathogenicity and reproduction and increased mortality [166,167] Gamma radiation Improved biological effectiveness against plant pests [169,170] Soil aeration 1-20% High survivability and density [164,173] Low oxygen content Significant increase in mortality [171,172] Metal ions Cd(II) and Pb(II)…”

Section: <4mentioning

confidence: 99%

“…Exposure to short-wavelength UV radiation for 1.75 min reduced the pathogenicity of infective juveniles by 19%, and exposure for 7 min reduced pathogenicity by 100% [ 166 ]. In viability assessments, Steinernema species, especially S. carpocapsae , showed greater tolerance to UV radiation than Heterorhabditis species, H. megidis and H. bacteriophora being the most sensitive [ 167 , 168 ].…”

Section: Composition Of Soil and Its Effect On Nematode Populationsmentioning

confidence: 99%

Impact of Abiotic and Biotic Environmental Conditions on the Development and Infectivity of Entomopathogenic Nematodes in Agricultural Soils

Matuska-Łyżwa,

Duda,

Nowak

et al. 2024

Insects

View full text Add to dashboard Cite

Many organisms, including beneficial entomopathogenic nematodes (EPNs), are commonly found in the soil environment. EPNs are used as biopesticides for pest control. They have many positive characteristics and are able to survive at sites of application for a long time, producing new generations of individuals. The occurrence of populations depends on many environmental parameters, such as temperature, moisture, soil texture, and pH. Extreme temperatures result in a decrease in the survival rate and infectivity of EPNs. Both high humidity and acidic soil pH reduce populations and disrupt the biological activity of EPNs. Nematodes are also exposed to anthropogenic agents, such as heavy metals, oil, gasoline, and even essential oils. These limit their ability to move in the soil, thereby reducing their chances of successfully finding a host. Commonly used fertilizers and chemical pesticides are also a challenge. They reduce the pathogenicity of EPNs and negatively affect their reproduction, which reduces the population size. Biotic factors also influence nematode biology. Fungi and competition limit the reproduction and survival of EPNs in the soil. Host availability enables survival and affects infectivity. Knowledge of the influence of environmental factors on the biology of EPNs will allow more effective use of the insecticidal capacity of these organisms.

show abstract

Entomopathogenic Nematodes as Models for Inundative Biological Control

Cited by 7 publications

References 112 publications

The Lesser Chestnut Weevil (Curculio sayi): Damage and Management with Biological Control Using Entomopathogenic Fungi and Entomopathogenic Nematodes

The Lesser Chestnut Weevil (Curculio sayi): Damage and Management with Biological Control Using Entomopathogenic Fungi and Entomopathogenic Nematodes

Arthropods and ultraviolet radiation: Survival, growth and development

Impact of Abiotic and Biotic Environmental Conditions on the Development and Infectivity of Entomopathogenic Nematodes in Agricultural Soils

Contact Info

Product

Resources

About