Increased public concern about environmental problems caused by the use of agrochemicals, used to control plant diseases and to increase crop yield, has provoked researchers to find out the alternate sources. Therefore, biological control of fungal phytopathogens, and plant growth promotion by use of microorganisms has received an increased emphasis as a safe, environment friendly, long lasting, inexpensive alternative to the chemical fungicides and fertilizers, respectively. In light of this a Streptomyces strain, possessing activity against different fungal phytopathogens viz. Colletotrichum acutatum, Cladosporium herbarum, Alternaria brassicicola, Alternaria mali, Colletotrichum gleospoiroides, Alternaria alternata, Fusarium oxysporum f.sp. dianthi and Fusarium moniliformae, was isolated from soil and identified as Streptomyces hydrogenans strain DH16. Application of culture supernatant (5%) and cells (10⁷ cfu/ml) of Streptomyces DH16 as seed and foliar treatments on Raphanus sativus suppressed the disease incidence of black leaf spot caused by A. brassicicola. The metabolites in the extract of S. hydrogenans DH16 showed insecticidal potential with 70 % larval, 66.66 % prepupal and 100% pupal mortality at concentration of 1600 µg/ml.The metabolites also prolonged the larval developmental period along with morphological abnormalities. Additionaly,this strain also posseses various plant growth promoting activities viz. indole acetic acid production (IAA; 80 µg/ml), ACC deaminase activity and nitrogen fixation. The in vivo effect of Streptomyces DH16, and IAA produced by it on plant growth promotion was evaluated on pea seedlings (Pisum sativum). Both the treatments showed enhanced seed germination, root length, shoot length, fresh and dry weights, and number of lateral roots. These results demonstrates that Streptomyces hydrogenans DH16 strain as well as its extracellular metabolites (antifungal, insecticidal and plant growth promoting substances) can be exploited as soil amendment as biofungicide, insecticide and biofertilizer.