The colored edition of the book ‘Bio-ecology and management of Aphis gossypii Glover on Okra and Brinjal in Manipur’ is the outcome of the research work of the author. The main motive for the publication of this book remained to provide relevant ideas for the bio-ecology and management of insect pest to the researchers. Aphis gossypii Glover which attacks the okra and brinjal is a major pest. This is widely distributed in India, South East Asia, America, tropical Africa, Europe and Australia. This is highly polyphagus and attacks about 500 host plants in India. Okra is one of the important vegetable crops grown from seeds in tropical and subtropical parts of the world. It is also a major component in the crop husbandry of India. Aphis gossypii is one of the major pests of okra and brinjal. Based on the economic importance of this pest, a detailed study on the ecology and behaviour of the pest is essential for developing the integrated control of the pest. Detailed information on the population trends and seasonal abundance, spatial distribution and control of Aphis gossypii on okra and brinjal are available in this book. Successful field trials with certain botanical and chemical insecticides to tackle the insect pest lead to one of the important aspects in the pest management. It is hoped that this book can be used as a reference work by the researchers who are doing in the field of entomology.