author(s)
Devi M, RF Niranjana and G Umapathy

abstract
Investigations were carried out regarding seasonal incidence of the jasmine eriophyid mite, mango bud mite and mulberry bud mites at the Department of Agricultural Entomology, TNAU, Coimbatore. Studies on the seasonal incidence revealed a major population peaks above the trend line during May to June, 2014. Maximum mite population of Aceria jasmini was recorded during first and second fortnight during June, 2014 (33.30 and 37.5 mites/leaf) respectively. The mango bud mite was very low in both October, 2013 (3.7 & 4.3) and 2014 (2.4 & 1.8). Mulberry bud mite was recorded during first and second fortnight of June, 2014 (15.8 and 16.4). Correlation studies between weather parameters and mean jasmine mite population displayed a positive correlation with maximum temperature (r = 0.605) and minimum temperature (r = 0.298) whereas the relative humidity (r = -0.543), rainfall (r = -0.689) were negatively correlated. There was significant relationship between the mite population and weather parameters except relative humidity of first fortnight and rainfall of second fortnight. The mango bud mite with correlation of maximum temperature (r = 0.303) as significance and minimum temperature (r = 0.155) which were positively correlated whereas rainfall (r = -0.843) as significance and relative humidity (r = -0.494) was negatively correlated with no significant in mite population in first fortnight observation. The mulberry bud mite population revealed significant relationship except for rainfall in the first fortnight mite population. The maximum (r = 0.329) and minimum temperature (r = 0.257) which were positively correlated with no significance in mite populations, relative humidity and rainfall negatively correlated with mite population and rainfall (r = -0.688) was significance during first fortnight with mite populations