A 1906 entomological article by H. M. Lefroy, Imperial Entomologist at Pusa, on the caterpillar (Caradrina exigua) that destroys newly sown indigo in Behar. It covers the life history, damage at Surat and Pusa, the effect of east and west winds, identification, distribution and natural enemies. Remedies discussed are sowing Java-Natal indigo, using irrigated lucerne as a trap crop surrounded by a trench, and spraying. A colored plate of the insect's stages and a trench cross-section diagram are included.

An 1906 article by the Government of India's entomologist surveying the main insect pests of cotton in India. It covers the cotton aphis and its natural enemies, the red cotton bug, the spotted and pink bollworms, the cotton stem borer and the stem weevil. For each it describes life history, the damage done to lint and seed, and practical control measures such as hand-picking, burning infested plants, kerosene traps, spraying and seed fumigation. It closes with separate recommendations for ordinary cultivators and for experimental farms, and includes four plates of insects.