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Sridhar, V.
- Incidence of Parasitic Mite, Bochartia Sp. On Zoophytophagous Mirid Bug, Nesidiocoris tenuis Reuter (Heteroptera: Miridae) at Tetra-trophic Level on Tomato in India
Abstract Views :211 |
PDF Views:132
Authors
Affiliations
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bengaluru 560 089, IN
2 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bengaluru 560 089
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bengaluru 560 089, IN
2 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bengaluru 560 089
Source
Journal of Biological Control, Vol 27, No 4 (2013), Pagination: 347–348Abstract
Incidence of larvae of parasitic mite Bochartia sp. (Acarina: Erythraeidae) on zoophytophagous mirid bug, Nesidiocoris tenuis Reuter (Heteroptera: Miridae) is reported at fourth (tetra-) trophic level in the food chain comprising of tomato crop (first trophic level), insect pests viz., neonate larvae of Spodoptera litura and Helicoverpa armigera (second trophic level), predatory mirid bug, N. tenuis (third-trophic level).Keywords
Nesidiocoris tenuis, Bochartia Sp., Tomato, Tetra-Trophic Level.Full Text
References
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- Sancheza JA, 2009. Density thresholds for Nesidiocoris tenuis (Heteroptera: Miridae) in tomato crops. Biol Control 51: 493–498.
- Sridhar V, Jayashankar M, Vinesh LS, 2012. Population dynamics of zoophytophagous mirid bug, Nesidiocoris tenuis (Reuter) (Heteroptera: Miridae) and its prey, Bemisia tabaci Genn. (Hemiptera: Aleyrodidae) on tomato (Solanum lycopersicum Mill.). Pest Mgmt Hort Ecosyst. 18(1): 35–38.
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- New Record of Canthecona parva (Distant) (Heteroptera: Pentatomidae) as a Predator of Hypena quadralis (Walker), a Pest of Antamul, Tylophora indica (Burm. F) Merr.
Abstract Views :220 |
PDF Views:113
Authors
V. Sridhar
1,
B. Jhansi Rani
1
Affiliations
1 Division of Entomology and Nematology Indian Institute of Horticultural Research Hessaraghatta Lake Post, Bangalore 560089, IN
1 Division of Entomology and Nematology Indian Institute of Horticultural Research Hessaraghatta Lake Post, Bangalore 560089, IN
Source
Journal of Biological Control, Vol 17, No 2 (2003), Pagination: 179-180Abstract
Predation by a penlatomid bug, Canthecona parm (Distant) on Hypena quadralis (Walker), a pest on the medicinal plant, Tylophora indica is reported.Keywords
Canthecona Parva, Hypena quadalis, Predatory Bug, Tyluphora indica.Full Text
- Efficacy of Integrated Pest Management Tools Evaluated against Tuta absoluta (Meyrick) on Tomato in India
Abstract Views :325 |
PDF Views:179
Authors
Affiliations
1 Division of Entomology and Nematology, ICAR-Indian Institute of Horticultural Research, Bengaluru – 560089, Karnataka, IN
1 Division of Entomology and Nematology, ICAR-Indian Institute of Horticultural Research, Bengaluru – 560089, Karnataka, IN
Source
Journal of Biological Control, Vol 33, No 3 (2019), Pagination: 264-270Abstract
South American tomato moth, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is an invasive pest on tomato and other solanaceous crops. In general, 20 to 30 % yield loss is caused by this pest and sometimes it may result in 100% damage, if timely management interventions are not followed. Though the pest was reported in India during 2014, presently it has spread to several tomato growing states. In the present study various IPM tools have been evaluated against this pest. As a long-term strategy of resistance breeding, genotype screening was carried out for identification of resistance sources from wild and cultivated tomato genotypes showing resistance/tolerance against T. absoluta. Among the evaluated wild and cultivated tomato genotypes, Solanum pennellii (Accession, LA 1940) was identified as a resistant source against T. absoluta both under choice and no-choice bioassays and is being used for resistance breeding. Various entomopathogens (Bacillus thuringiensis, Metarhizium anisopliae, Beauveria bassiana and M. rileyi), egg parasitoids (Trichogramma chilonis, T. pretiosum and Trichogrammatoidea bactrae), light traps, pheromone traps, synthetic insecticides, botanical origin insecticides were also evaluated for their relative efficacy. Among the egg parasitoids T. pretiosum and among synthetic chemicals, spinetoram 12 SC@ 1.25ml/l were found very effective for the management of T. absoluta. Yellow light traps were found as an effective component for integrated management of T. absoluta. Azadirachtin 5% EC at the tested concentrations showed highest mean radial growth (24.67 mm) with relatively less inhibition (16.51%) of M. anisopliae indicating these combinations can be effectively utilised in the eco-friendly management of T. absoluta. We reported natural incidence of M. anisopliae on T. absoluta larvae, causing up to 35 per cent mortality during 2016-17.
Keywords
Entomopathogens, Host Plant Resistance, IPM, Light Traps, Pheromone Traps, Tuta absoluta.Full Text
References
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