POPULATION DYNAMICS OF THRIPS FRANKLINIELLA TRITICI (FITCH) ON DIFFERENT ROSE VARIETIES

Rose is an important cut flower grown on large scale in pakistan for commercial purposes. thrips is one of the most important sucking pests of rose causing a huge loss to yield and beautification of roses. the present research work was carried out under randomized complete block design (rcbd) to study the population dynamics of rose thrips in experimental field area of pir mehr ali shah arid agriculture university rawalpindi on ten different rose cultivars (iceberg, christan dair, visky mac, love, surkha rose, macadi, perfecta and gold medal). thrips was recorded on buds and flowers by using magnifying lens and the effect of environmental factors on thrips population was studied. the data was collected from 1st appearance of thrips on rose cultivars, and was continued until the end of population. significantly greater thrips populations were observed on perfecta, iceberg and gold medal. however, significantly lesser thrips population was observed on love and mecadi. the expected results concluded from the studies will be helpful for the end users including gardeners and park managers to improve the health of their roses by knowing about the population fluctuation of rose thrips for its better management.