Seasonal abundance of major pests of Sathgudi sweet orange and acid lime

Studies on seasonal abundance of major citrus pests viz., citrus leaf miner (Phyllocnistis citrella Stainton), butterfly (Papilio demoleus Linnaeus), and psylla (Diaphorina citri Kuwayama), were carried out. The results revealed that the peakincidence (40.84%) of citrus leafminer was noticed during first fortnight of Januaryat maximumtemperature, minimum temperature, relative humidity-I and II and rainfall of 29.92°C, 16.45°C, 73.93 percent, 41.06 percent and 0.27 mm respectively. Highest larval population of citrus butterfly was recorded during second fortnight of December (67.5 larvae per 20 twigs). The highest population of citrus psyllid (16.7 psyllids/10 twigs) was recorded during first fortnight of December.