National Academy of Agricultural Sciences (NAAS)
|
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Field evaluation of MAK all season Horticultural Mineral Oil (HMO) was done against San Jose scale Quadraspidiotus perniciosus Comstock and European red mite Panonychus ulmi Koch in apple orchards at two locations in Kashmir under field conditions during year 2014-2015. Phytotoxicity and effect on natural enemies were also recorded. HP (HMO) was used as standard check for conducting the experiment. Both the oils were sprayed during dormant and summer season to suppress different stages of the insect pests. Different concentrations of oil were sprayed viz., 2.5, 2.0 and 1.5% during dormant season and 1.0, 0.75 and 0.50% in summer season. All the concentrations significantly reduced the pest population over the standard check. Highest mortality of 76.66% and 81.22% were recorded against San Jose scale and 78.19% and 82.35 % against European red mite at 2.5% at Wakura during dormant and summer season respectively. None of the phytotoxicity effects were seen on the apple plant. Stethorus punctum and Coccinellids were the key predators found feeding on scale insect and European red mite. Maximum cumulative mean mortality of natural enemies was recorded as 36.73 at 1.0 % spray of MAK. The findings of the study exerted that by spraying these oils considerable reduction in the rate of infestation was observed in apple trees at both the locations.
Citations |
 |
 |
 |
 |
