author(s)
Mohd. Yousuf, Sudhir Singh, Mohsin Ikram and RB Singh

abstract

A survey of Northern India was carried out from 2010 to 2014 in different Eucalyptus growing areas of Uttarakhand, Uttar Pradesh, Haryana and Punjab. Gall wasp infestation was observed in both young plantations and nurseries. Observations revealed that in northern India Eucalyptus growing areas were under threat of attack by gall wasp, Leptocybe invasa. Biological control of Leptocybe invasa has been applied in Punjab, from 2012 to 2016, where infestation of gall wasp was regularly decreased and came below 10 % by April 2016.