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Sreelatha, D.
- Seasonal Incidence of Maize Stem Borer-Record of New Stage and Site of Oviposition of Sesamia inferens
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Authors
Affiliations
1 Maize Research Centre, Agricultural Research Institute, Rajendranagar, Hyderabad (Telangana), IN
1 Maize Research Centre, Agricultural Research Institute, Rajendranagar, Hyderabad (Telangana), IN
Source
International Journal of Plant Protection, Vol 10, No 2 (2017), Pagination: 438-441Abstract
A field experiment on seasonal incidence of stem borers in corn was conducted at Maize Research Centre, Rajendranagar, Hyderabad. Undertaking sowings at monthly intervals from Jan 2013 to Dec 2013 in an area of 150 m2 as a replicated trial. DHM 117 hybrid was sown in ridge and furrow method at 75x20 cm spacing. Random destructive sampling was done twice at 30 and 60 DAG @ 4 plants per replication to quantify the genera wise stem borer larval population and also stem tunneling. Observations on stem borer incidence and yield were recorded. Data was subjected to arcsine and square ischolar_main transformation and two way analysis was conducted. It is evident from the results that among the monthly sowings, September and February are subjected to severe stem borer attack, however, low yields are observed in summer. Hence, it is advisable to take up sowings in July during Kharif and in November during Rabi to obtain maximum yields with low stem borer incidence.Keywords
Maize Stem, Borer-Record, New Stage, Site, Oviposition, Sesamia inferens.
References
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- Efficacy of New Insecticide Molecules against Spotted Stem Borer Chilo partellus (Swinhoe) in Maize
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Authors
Affiliations
1 Maize Research Centre (PJTSAU), Agricultural Research Institute, Rajendranagar, Hyderabad (Telangana), IN
2 Winter Nursery Centre, ICAR-Indian Institute of Maize Research, Hyderabad (Telangana), IN
1 Maize Research Centre (PJTSAU), Agricultural Research Institute, Rajendranagar, Hyderabad (Telangana), IN
2 Winter Nursery Centre, ICAR-Indian Institute of Maize Research, Hyderabad (Telangana), IN
Source
International Journal of Plant Protection, Vol 11, No 1 (2018), Pagination: 70-72Abstract
Management of spotted stem borer Chilo partellus (Swinhoe) on maize (DHM 117) by insecticides with different concenterations was conducted at Maize Research Centre, Hyderabad, Telangana during Kharif 2015 and 2016. The observations based on leaf injury rating, grain yield and cost benefit ratio showed that flubendiamide 480 SC @0.1 ml followed by flubendiamide 480 SC @0.2 ml and deltamethrin 2.8 EC @ 0.8 ml/l of water proved highly effective and economical in reducing the C. partellus damage.Keywords
Maize, Spotted Stem Borer, Chilo partellus, Leaf Injury Rating, Insecticides, Evalution.References
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