Occurrence of Aphis craccivora on Clerodendrum indicum - a new record from north-east India.
Clerodendrum indicum (L.) Kuntze, a medicinal shrub, is gaining worldwide recognition and importance because of its outstanding property as anti HIV-I agent. Studies on seasonal incidence of A. craccivora Koch, an important polyphagous pest, were carried out on C. indicum under field conditions during 2012-14 at Jorhat, Assam. The peak population was recorded during the month of November 2012 followed by December 2012. Similar trend of occurrence was also observed during 2013-14. Multiple regression model was developed for A. craccivora Koch to predict their seasonal incidences under the agro-climatic conditions of Jorhat.