author(s)
G Mahesh Babu, Dr. SMAS Rahman, Dr. SJ Rahman and Dr. Suseelendra Desai

abstract
Laboratory studies were conducted to study the effect of temperature and rhizosphere competence on biological attributes of Beauveria bassiana under in vitro conditions at AICRP on biological control, ARI, Rajendranagar. The test fungi showed maximum growth, sporulation and viability at 25ËšC and declined precipitously as temperature increased to 35ËšC. As temperature increases above or decreases below optimum ranges, conidial germination is decreased resulting in inhibition of infection and impediment mycosis. Dicot rhizosphere has been shown to support greater EPF survival than monocot rhizosphere. The overall effect of plant species was such that tomato rhizosphere (67.50) was the least favorable for the fungal efficacy and most encouraging rhizosphere was that of okra (83.75) in resulting in the highest efficacy of fungus.