Population dynamics of major sucking pests and their natural enemies of pomegranate (Punica granatum L.) under north Gujarat conditions.

Vora, P. D.; Prajapati, B. G.; Patel, D. S.; Gothi, H. R.

An investigation was carried out at Horticultural Instructional Farm, C.P. College of Agriculture, Sardarkrushinagar during 2019-20. The results showed that the peak population of thrips during the 5th week of November i.e., 48th SMW, whereas, peak activity of aphid was found during the 4th week of November i.e., 47th SMW. The population of mealybug was noticed during the 24th to 26th SMW of June. The highest number of coccinellids were recorded during the 4th week of November i.e., 47th SMW, whereas, the activity of chrysopids was remained maximum during the 3rd week of November i.e., 46th SMW. The correlation co-efficient of pomegranate thrips and aphid with maximum and minimum temperature, morning relative humidity and wind velocity were found negative, highly significant. The results of mealybug revealed that maximum and minimum temperature, morning and evening relative humidity, sunshine hours and rainfall distribution were found positive non-significant. While, coccinellids showed negative highly significant correlation with maximum temperature, morning relative humidity and wind velocity. Whereas, chrysopids showed that the minimum temperature and wind velocity were negative but highly significant and morning relative humidity showed a negative significant relationship. The population of coccinellids and chrysopids showed a highly significant and positive correlation with thrips and aphid population.

HORTICULTURAL crops; AGRICULTURE; POPULATION; TEMPERATURE; HUMIDITY

Current Agriculture, 2024, Vol 41, Issue 1, p45

0254-1092

Academic Journal

10.61080/CA/V41/i1/2024/45-50