Impact of environmental factors on infestation of cashew leaves by leaf miner, Acrocercops syngramma Meyrick in Gujarat

Studies were conducted in a cashew plantation at Waghai, Gujarat, India during 2017 – 19 on cashew variety vengurla- 4 throughout two consecutive years to determine the pest status of leaf miner, Acrocercops syngramma Meyrick and their relation with environmental factor. Damage to cashew leaf by leaf miner was prevailed only from July to December with maximum damage (2.19%) in the month of November 45th SMW in hilly area of the Dangs. Further, pest infestation on leaves found to have significant positive correlation with maximum temperature, mean temperature, bright sunshine and evaporation, while negative with morning relative humidity, evening relative humidity, mean relative humidity and wind speed.