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Manisegaran, S.
- Natural Parasitism of Rice Leaf Folder Cnaphalocrocis medinalis (Guenee) in Karaikal Region
Abstract Views :246 |
PDF Views:106
Authors
Affiliations
1 Regional Research Station, Vriddhachalam 606 001, IN
2 Tamil Nadu Agricultural University, Coimbatore 641 003, IN
3 Pandit Jawaharlal Nehru College of Agriculture, Serumavilangai, Karaikal 609 607, Pondicherry, IN
1 Regional Research Station, Vriddhachalam 606 001, IN
2 Tamil Nadu Agricultural University, Coimbatore 641 003, IN
3 Pandit Jawaharlal Nehru College of Agriculture, Serumavilangai, Karaikal 609 607, Pondicherry, IN
Source
Journal of Biological Control, Vol 11, No 1&2 (1997), Pagination: 73-75Abstract
Seven parasitoids were reared from natural population of rice leaf folder Cnaphalocrocis medinalis (Guenee) in Karaikal region, Union Territory of Pondicherry. Goniozus sp. and Elasmus johnstoni Ferriere were the most effective. The parasitism ranged from 4.0.-22.0 per cent. Pediobius bruchicida (Rondani) is reported for the first time on C. medinalis from the coastal region of Karaikal. Parasitization by Pediobius bruchicida was upto 4.0 per cent.Keywords
Cnaphalocrocis medinalis, Elasmus johnstoni, Goniozus sp., Parasitism, Pediobius bruchicida, Rice.Full Text
- Assessment of Contact Toxicity of Insecticides to Chelonus blackburni Cam. (Hymenoptera: Braconidae)
Abstract Views :220 |
PDF Views:119
Authors
Affiliations
1 Pandit Jawaharlal Nehru College of Agriculture, Karaikal 609 605, IN
2 Agri. College & Res. Institute, Madurai 625 104, IN
1 Pandit Jawaharlal Nehru College of Agriculture, Karaikal 609 605, IN
2 Agri. College & Res. Institute, Madurai 625 104, IN
Source
Journal of Biological Control, Vol 2, No 2 (1988), Pagination: 126-127Abstract
Chelonus blackburni Cam. is an important parasite of cotton bollwonns. To assess the relative safety of insecticides like methomyl (Lannate 24L.),endosulfan and EPN to this parasite, a laboratory study was conducted during 1984-85 at insectary, in Tamil Nadu Agricultural University, Coimbatore and the results are presented in this communication.Keywords
Chelonus blackburni, Insecticide Safety.Full Text
- Effect of Biorationals against the Thrips, Scirtothrips dorsalis Hood Infesting Chilli
Abstract Views :128 |
PDF Views:1
Authors
Affiliations
1 Department of Agricultural Entomology, Agricultural College and Research Institute, Madurai (T.N.), IN
2 Krishi Vigyan Kendra, Pechiparai (T.N.), IN
3 Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
1 Department of Agricultural Entomology, Agricultural College and Research Institute, Madurai (T.N.), IN
2 Krishi Vigyan Kendra, Pechiparai (T.N.), IN
3 Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
Source
International Journal of Plant Protection, Vol 9, No 1 (2016), Pagination: 158-161Abstract
The present investigation was carried out to test the efficacy of biorationals against thrips, Scirtothrips dorsalis Hood on chilli. Field experiments were conducted at farmers holding during September 2009 - Febrauary 2010 and November 2009 - April 2010. Among biorationals tested, spinosad 45 SC @ 0.4ml 1-1 and emamectin benzoate 5 SG @ 0.4g 1-1 was found to be superior to the standard check dimethoate 30 EC @ 2ml 1-1 registering the least population of 0.55 and 0.59 / leaf, followed by Beauveria bassiana @ 1 x 108 spores ml-1 and neem oil 3 per cent which recorded thrips population of 1.01 and 1.11 / leaf. With regard to leaf curl damage by thrips, spinosad 45 SC @ 0.4 ml 1-1 and emamectin benzoate 5 SG @ 0.4g 1-1was very effective. Highest dry chilli yield of 1509 kg ha-1 was registered in spinosad 45 SC @ 0.4ml 1-1, which was on par with emamectin benzoate 5 SG @ 0.4g 1-1 (1525 kg ha-1) with respective additional income of Rs. 30,300 and Rs. 26,400. The highest cost benefit ratio (1:4.30) was obtained in spinosad 45 SC @ 0.4ml 1-1 followed by 1:4.30 in emamectin 5 SG @ 0.4g 1-1.Keywords
Biorationals, Thrips, LCI, Yield, Chilli.
- Record of Telenomus Californicus Ashmead on Fall Army Worm Spodoptera Frugiperda (J E Smith)
Abstract Views :66 |
PDF Views:65
Authors
Affiliations
1 Department of Agricultural Entomology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, Tamil Nadu, IN
1 Department of Agricultural Entomology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, Tamil Nadu, IN
Source
Indian Journal of Entomology, Vol 84, No 1 (2022), Pagination: 132-133Abstract
Telenomus californicus Ashmead (Hymenoptera: Platygastridae), an egg parasitoid of Spodoptera frugiperda (J E Smith) is documented as a new record from Madurai in Tamil Nadu, India. This species has been reared from the field collections of parasitized eggs. The parasitoid was studied for its morphology and the species was distinguished by its dilated proximal four antennal segments.
Keywords
Spodoptera frugiperda, maize, Madurai, egg parasitoid, Telenomus californicus, Platygastridae, Hymenoptera, morphology, new record, description, diagnosisFull Text
References
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- Efficacy of Plant Products Against Larvae of Greater Wax Moth Galleria Mellonella L.
Abstract Views :80 |
PDF Views:58
Authors
Affiliations
1 Department of Agricultural Entomology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, Tamil Nadu, IN
2 Department of Soil Science and Agricultural Chemistry, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, Tamil Nadu, IN
1 Department of Agricultural Entomology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, Tamil Nadu, IN
2 Department of Soil Science and Agricultural Chemistry, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai 625104, Tamil Nadu, IN
Source
Indian Journal of Entomology, Vol 84, No 2 (2022), Pagination: 384-386Abstract
Laboratory experiment was conducted to evaluate the efficacy some plant products against third instar larvae of Galleria mellonella L. at the Agricultural College and Research Institute, Madurai. Among plant products tested citronella oil 3% led to maximum mortality (76.67%), followed by neem oil 3% (73.33%) while garlic extract 3% gave the least mortality (53.33%) at 14 DAT. The weight reduction of comb ranged from 3.21 to 5.36 g and cell damage ranged from 27.88 to 57.45%, respectively in different treatments.Keywords
Plant products, Galleria mellonella, third instar, citronella oil, neem oil, garlic extract, mortality, weight reduction of combFull Text
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