Abstract
Observations were made on young nursery plants and apple orchards to record the coccinellid predators of Aphis pomi De Geer on apple plants in Himachal Pradesh which is main apple growing state of India. Nine species of lady bird beetles were observed feeding on green apple aphid, Aphis pomi De Geer on the apple nursery plants of Mashobra locality of Shimla district and Ner Chowk locality of Mandi district of Himachal Pradesh, India. On the basis of general observations, it was found that the larvae of beetle Harmonia dimidiata (F.), are very active to feed on the nymphs of green apple aphid. Therefore, it was considered worthwhile to investigate the biology and feeding potential of this beetle on green apple aphid from biological control point of view.
Highlights
Apple plants are attacked by a number of insect pests
Observations were made on young nursery plants and apple orchards to record the coccinellid predators of Aphis pomi De Geer on apple plants in Himachal Pradesh which is main apple growing state of India
Nine species of lady bird beetles were recorded feeding on green apple aphid, Aphis pomi De Geer on the apple nursery plants of Mashobra locality of Shimla district and Ner Chowk locality of Mandi district of Himachal Pradesh
Summary
Green apple aphid, Aphis pomi De Geer is considered a pest damaging apple nursery plants severely. This aphid pest was first reported by De Geer [1] from Sweden and has been reported from all the apple growing regions of Europe, North America and Southwest Asia [2]. This insect pest infests apple plants throughout the year and poses a great. Gautam and Kumari [8] studied the biology of green apple aphid Aphis pomi De Geer on apple host in Himachal Pradesh, India
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