Agaricus bisporus (Lange) Imbach, commonly known as button mushroom, is an extra nutritious and first ever globally consumed edible fungus. The perishable nature of this mushroom makes it susceptible to various fungal diseases, among which cobweb disease caused by Cladobotryum mycophilum (Oudem.) W. Gams & Hooz results in its quality and quantity decline. The present study was designed to use selected plant extracts:  seeds of clove (Syzygium aromaticum L.), buds of moringa (Moringa oleifera Lam.) and leaves of mint (Mentha spicata L.) against C. mycophilum. Different concentrations viz. 1, 2 and 3% of each extract were used in vitro to control growth of the fungal pathogen. Results revealed that all the selected extracts inhibited fungal growth significantly. The highest concentration of clove, mint and moringa extracts inhibited the fungal growth upto 93%, 56% and 39%, respectively. Future studies focusing on in vivo trials are suggested for broad level application of these eco-friendly biocides against cobweb disease of button mushroom as an excellent alternative of fungicides.