Dr. Vyas PandeySevak Das2017-07-042017-07-042010http://krishikosh.egranth.ac.in/handle/1/5810024211Okra (Abelmoschus esculentus L.) is one of the most popular vegetable grown in tropical and sub-tropical regions. It is widely grown for its tender fruits, which are good source of minerals, fibers and vitamins. Okra crop suffers heavy yield losses during cultivation in both summer and rainy seasons due to pests and diseases infestation owing to congenial environmental conditions. Jassid, aphid, whitefly, mite, fruit borer and yellow vein mosaic are the major pests and diseases of okra. Weather plays an important role for initiation and development of pests and diseases in summer okra as well as determined the yield of okra in terms of quality and quantity. Keeping above in view, the field experiment was conducted in summer season 2009 at Agronomy Farm of B.A. College of Agriculture, Anand Agricultural University, Anand in split plot design with five dates of sowing viz. 15th February (D1), 1st March (D2), 15th March (D3), 1st April (D4) and 15th April (D5) as a main plot treatments and two levels of spraying (S0 and S1) as a sub plot treatments with four replications. The daily weather data were collected from agrometeorological observatory situated near the experimental site. The daily weather data were converted into weeklyenAgricultural meteorologyStudyThesis