Assessment of novel insecticides against the insect pests of cucumbe

Simple item page
dc.contributor.advisorRana, B. S.
dc.contributor.authorPurohit, Bharat Kr.
dc.date.accessioned2017-08-04T09:47:44Z
dc.date.available2017-08-04T09:47:44Z
dc.date.issued2010
dc.descriptionAssessment of novel insecticides against the insect pests of cucumbeen_US
dc.description.abstractDuring September to December 2008, a field trial was conducted to study the seasonal incidence of major insect pests of cucumber along with bioefficacy of some novel insecticides against the pests at Horticulture Farm, Rajasthan College of Agriculture, Udaipur. The results of present investigation revealed that the incidence of jassid, Amrasca biguttula biguttula (Ishida) and whitefly, Bemisia tabaci (Gennadius) commenced during 38th SMW (17th – 23rd September), whereas, red pumpkin beetle, Raphidopalpa foveicollis (Lucas) during 37th SMW (10th - 16th September). The population of jassid and whitefly touched the peak during 8th - 14th October (86.30 jassids/five plants) and 15th – 21st October (67.35 whiteflies/five plants), respectively. While, the peak incidence of red pumpkin beetle (4.00 beetles/five plants) was observed during 22nd – 28th October. The fruit fly, Dacus cucurbitae (Coquillet) infestation was recorded soon after fruit formation i.e. second week of October (3.03 %) and reached the maximum level (17.04 %) during the first week of November. The population of jassid, whitefly, red pumpkin beetle and fruit fly were found non significantly associated with average temperature and relative humidity. Bioeffecacy of different insecticides viz., imidacloprid 70 WG (24 and 21g a.i./ha), imidacloprid 200 SL (25 and 20 g a.i./ha), acetamiprid 20 SP (20 g a.i./ha) and thiamethoxam 25 WG (25 g a.i./ha) was evaluated against the major insect pests of cucumber. Among these, imidacloprid 200 SL @ 25 g a.i./ha was found most effective for the control of jassids and whiteflies as it accounted 74.40 and 69.18 per cent control, respectively. Likewise, the least fruit infestation on the number and weight basis (11.17 and 10.78%) was recorded in this treatment over control (21.01%). Acetamiprid 20 SP @ 20 g a.i. /ha was found most effective treatment to control red pumpkin beetle as it caused 47.92 per cent reduction in beetle population. All the insecticidal treatments investigated were found effective in controlling pests and did not produce any phytotoxic effect on cucumber plants. The effects of different insecticides were also observed on the population of natural enemies. Highest reduction was observed in acetamiprid 20 SP @ 20 g a.i./ha (26.18%) treatment, whereas, the imidacloprid at various doses proved to be safer for natural enemies.en_US
dc.identifier.citationPurohit and Rana, 2010en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810027461
dc.keywordsNovel, Insecticides, Insect, Pests, Cucumberen_US
dc.language.isoenen_US
dc.pages66en_US
dc.publisherMPUAT, Udaipuren_US
dc.research.problemAssessment of novel insecticides against the insect pests of cucumbeen_US
dc.subEntomologyen_US
dc.subjectnullen_US
dc.themeAssessment of novel insecticides against the insect pests of cucumbeen_US
dc.these.typeM.Sc
dc.titleAssessment of novel insecticides against the insect pests of cucumbeen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Bharat Kumar Purohit 2010.pdf
Size:
290.92 KB
Format:
Adobe Portable Document Format
Description:
Entomology
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Thesis