The crude ethanolic extracts of Mentha longifolia Linn. (leaves and stem) and Aloe vera (leaves) were screened for various invitro biological and phannacological activities including antifungal, antibacterial, insecticidal, phytotoxic activities and brine-shrimp lethality. All the extracts exhibited remarkable (~6O%) phytotoxic activity in the highest tested concentration (500 ppm) against Lemna minor L. with Aloe vera extract showing complete inhibition of the studied plant. The Mentha longifolia Linn. (stem) and Aloe vera extracts were also explored to posses good (~55%) antifungal activities against Trichophyton longifusus, (75% and 60%), and Microsporum canis (65% and 55%), respectively while Mentha longifolia Linn. (leaves) displayed only a weak (:5:50%) activity against Trichophyton longifusus and Fusarium solani (20% each). These extracts were found to be devoid of any antibacterial, insecticidal activities and Brine shrimp lethality during this study.
H U SHAH ,A A SHAD ,S KHATTAK ,S U REHMAN ,M AHMAD ,T KHAN ,
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