Comparison of Efficacy of Entomopathogenic Nematodes Combined with Antidesiccants Applied by Canopy Sprays Against Three Cotton Pests (Lepidoptera: Noctuidae)

Glazer, I.; Klein, M.; Navon, A.; Nakache, Y.

doi:10.1093/jee/85.5.1636

Cited by 68 publications

(28 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the major obstacles to EPNs efficacy in foliar applications is its limited persistence. Desiccation is the key factor influencing nematode persistence on foliage (Glazer et al 1992). Arthurs et al (2004) showed that, in foliar applications of EPNs, insect habitat in the leaves determines the efficacy of the nematodes, as in bore holes and cryptic foliage the nematodes are more effective than in exposed foliage.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of entomopathogenic nematodes against the tomato leafminer Tuta absoluta in laboratory and greenhouse conditions

2010

View full text Add to dashboard Cite

The tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is an important pest of tomato crops in South America and it has recently arrived in Europe affecting tomato plantations. The susceptibility of T. absoluta larvae and pupae to three species of entomopathogenic nematodes (Steinernema carpocapsae, Steinernema feltiae and Heterorhabditis bacteriophora) was examined under laboratory conditions. Leaf bioassays were conducted to evaluate the nematode's capability to reach the larvae and kill them within the galleries. The efficacy of the three nematode species after foliar application to potted tomato plants was evaluated under greenhouse conditions. High larval mortality (78.6-100%) and low pupae mortality (\10%) was determined in laboratory experiments. In the leaf bioassay a high level of larval parasitation (77.1-91.7%) was recorded revealing the nematode's capacity to kill the larvae inside the galleries. In the pot experiments nematode treatment reduced insect infection of tomato plants by 87-95%. The results demonstrate the suitability of entomopathogenic nematodes for controlling T. absoluta.

show abstract

Section: Discussionmentioning

confidence: 99%

Efficacy of entomopathogenic nematodes against the tomato leafminer Tuta absoluta in laboratory and greenhouse conditions

2010

View full text Add to dashboard Cite

show abstract

“…However, the use of protective formulation compounds and development of antidesiccants might improve their eYcacy. Glazer et al (1992) improved S. carpocapsae Mexican strain eYcacy against Earias insulana Boisduval (Lepidoptera: Noctuidae), Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) and S. littoralis in canopy applications to cotton plants. If nematode foliar applications were considered, the use of a calcium alginate gel formulation as carrier might improve the eYcacy of S. feltiae (Navon et al 2002).…”

Section: Discussionmentioning

confidence: 99%

A laboratory study on the activity of Steinernema feltiae (Rhabditida: Steinernematidae) Rioja strain against horticultural insect pests

Campos‐Herrera

Gutiérrez

2009

J Pest Sci

View full text Add to dashboard Cite

The potential of the entomopathogenic nematode Steinernema feltiae (Filipjev) (Rhabditida: Steinernematidae) Rioja strain was assessed under laboratory conditions. Last instar larvae of Leptinotarsa decemlineata Say (Coleptera: Chrysomelidae), Spodoptera littoralis Boisdouval (Lepidoptera: Noctuidae) and Trichoplusia ni Hübner (Lepidoptera: Noctuidae) were exposed to infective juveniles (IJs) under laboratory conditions. Larval mortality, days to larval death, infection cycle length, and reproductive potential were recorded. EYcacy was assessed performing dose-response experiments. The results indicate that control of L. decemlineata with S. feltiae Rioja strain is not economically proWtable (LC 50 = 99.61 IJs/ cm 2 ), whereas results obtained for T. ni (LC 50 = 0.27 IJs/ cm 2 ) are promising. Due to the life cycle of this insect, the eYcacy needs to be investigated in foliar application studies. The eVects on S. littoralis (LC 50 = 0.69 IJs/cm 2 ) was considered the most suitable for development of the Rioja strain as a biocontrol agent for soil application.

show abstract

“…Shapiro-Ilan et al [13] and Lacey and Shapiro-Ilan [14] concluded that improvements in formulations or application techniques may enhance the efficacy of above ground applications with entomopathogenic nematodes. The use of anti-desiccants or other adjuvants has been reported to provide improved above ground control of various foliar pests including the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), the sweet potato whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), and egyptian cotton leafworm, Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) [3,[15][16][17]. In the present study, adding agar to a water suspension of S. feltiae prolonged the persistence of nematodes and increased the chance of IJs nematode attack on hosts and invasion of the target insect on foliage crops.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of the entomopathogenic nematode Steinernema feltiae in agar gel formulations against larvae of the Colarado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae)

Hussein¹,

Adel

Gelbič

2011

Open Life Sciences

View full text Add to dashboard Cite

The entomopathogenic nematode Steinernema feltiae strain Ustinov Russia was used on potato foliage to control larvae of the Colorado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae). Nematodes were applied in formulations of agar at 4%, 2%, 1% and 0.5% concentrations and compared to a control application of nematodes in water for nematode survival. Agar formulation significantly improved efficacy by increasing nematode survival through reduction in desiccation when compared to water-based formulation. More than 70% of infective juvenile nematodes (IJs) died after being incubated in the highest concentration of agar for 12 h, while only 8% mortality was recorded at the 1% concentration. Suspension of nematodes in 1% agar gel was shown to be efficacious in both laboratory and greenhouse tests for extension of the nematodes’ survival. Agar formulation droplets dried slower than control droplets by 127.8 min. Leptinotarsa decemlineata mortality significantly increased when insects were exposed to infective juvenile nematodes for four hours after application. In conclusion, the agar formulation enhanced nematode survival by providing a suitable environment thereby delaying dryingand increasing the possibility for nematodes to invade their host on the foliage.

show abstract

Comparison of Efficacy of Entomopathogenic Nematodes Combined with Antidesiccants Applied by Canopy Sprays Against Three Cotton Pests (Lepidoptera: Noctuidae)

Cited by 68 publications

References 0 publications

Efficacy of entomopathogenic nematodes against the tomato leafminer Tuta absoluta in laboratory and greenhouse conditions

Efficacy of entomopathogenic nematodes against the tomato leafminer Tuta absoluta in laboratory and greenhouse conditions

A laboratory study on the activity of Steinernema feltiae (Rhabditida: Steinernematidae) Rioja strain against horticultural insect pests

Effectiveness of the entomopathogenic nematode Steinernema feltiae in agar gel formulations against larvae of the Colarado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae)

Contact Info

Product

Resources

About