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Patel, S. M.
- Comparative Biology and Predatory Potential of Green Lace Wing on Different Aphid Species
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Authors
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1 Department of Entomology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, NAVSARI (GUJARAT), IN
1 Department of Entomology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, NAVSARI (GUJARAT), IN
Source
International Journal of Plant Protection, Vol 8, No 1 (2015), Pagination: 13-20Abstract
Investigation on comparative biology of green lace wing, Chrysoperla zastrowi arabica Henry et al. (Neuroptera : Chrysopidae) was carried out in the Bio-control Laboratory, Navsari Agricultural University, Navsari, Gujarat during 2007 to 2009. The results on comparative biology of C. zastrowi arabica on two aphid species viz., Aphis gossypii Glower and Myzus persicae (Sulzer) revealed that average duration of total developmental period was 18.70 ± 0.64 and 18.93 ± 0.55 days when reared on A. gossypii, and M. persicae, respectively. The egg laying capacity of C. zastrowi arabica was recorded 754.25 ± 143.47 and 601.75 ± 89.43 eggs when reared on A. gossypii and M. persicae, respectively. Study on predatory potential of C. zastrowi arabica revealed that single larva consumed an average of 627.60 ± 42.39 and 587.5 ± 55.59 numbers (nymphs and adults) of A. gossypii and M. persicae, respectivelyKeywords
Green lace wing, Comparative biology, Predatory potential.- Population Dynamics of Major Sucking Pests Infesting Niger and their Relation to Weather Parameters
Abstract Views :202 |
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Authors
Affiliations
1 Department of Entomology, Navsari Agricultural University, NAVSARI (GUJARAT), IN
2 Department of Entomology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, NAVSARI (GUJARAT), IN
1 Department of Entomology, Navsari Agricultural University, NAVSARI (GUJARAT), IN
2 Department of Entomology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, NAVSARI (GUJARAT), IN
Source
International Journal of Plant Protection, Vol 8, No 1 (2015), Pagination: 61-64Abstract
Investigations were carried out on population dynamics of major insect pests on niger (Guizotia abyssinica L.) at College Farm, Navsari Agricultural University, Navsari during winter 2011-12. For the purpose, 20 plants were randomly selected from an experimental area of 20×20 m. Observations were recorded at weekly interval. For recording the population of aphid (Uroleucon compositae), jassid (Amrasca biguttula biguttula), and whitefly (Bemisia tabaci), three leaves from top, middle and bottom portion of the randomly selected plants were critically observed and number of aphids, jassids and whiteflies were counted and population per leaf was worked out. The data on population of sucking pests was correlated with weather parameters viz., maximum, minimum and average temperature, morning, evening and average humidity, sunshine hours, wind velocity and evaporation. The results revealed that the incidence of sucking pests viz., aphid, Uroleucon compositae (Theobald) started from second week of December which reached peak (63.20 aphids/leaf) during first week of February. The incidence of jassid, Amrasca biguttula biguttula (Ishida) started from second week of December with a peak (8.52 jassids/ leaf) during fourth week of January and thereafter, steadily declined and finally disappeared. Whereas, whitefly, Bemisia tabaci (Gennadius) started from second week of December with a maximum level during (14.56 whiteflies/leaf) fourth week of January. Among various weather parameters viz., maximum, minimum and average temperature had highly significant negative influence on the population of all the major sucking insect pests of niger.Keywords
Niger, Correlation, Abiotic Factors, Weather Parameters.- Population Dynamics of Major Insect Pests of Cowpea [Vigna ungiculata (L.) Walp.]
Abstract Views :215 |
PDF Views:1
Authors
Affiliations
1 Department of Entomology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, NAVSARI (GUJARAT), IN
1 Department of Entomology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, NAVSARI (GUJARAT), IN