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Introduction: Angiostrongylus vasorum is a nematode that parasitizes molluscs, dogs, and even man., Methods: The objective was to evaluate the predatory activity of the conidia of two fungal isolates of Duddingtonia flagrans (AC001 and CG722) on first-stage larvae (L1) of A. vasorum in laboratory conditions., Results: At the end of the experiment, there were significant reductions (p<0.01) of 74.5% and 63.2%, on average, in the A. vasorum L1 recovered in the AC001 and CG722 treatment conditions, respectively., Conclusions: The two isolates of fungi were efficient in the capture and destruction of A. vasorum L1.

Introduction: Strongyloides stercoralis is a nematode that infects much of the population worldwide., Methods: This study aimed to compare the ability of predatory nematophagous fungi Duddingtonia flagrans (AC001), Monacrosporium thaumasium (NF34) and Arthrobotrys robusta (I-31) on infective larvae (L₃) of Strongyloides stercoralis in laboratory conditions on 2% water-agar., Results: At the end of the experiment, the percentage reductions in Strongyloides stercoralis L3 were 83.7% (AC001), 75.5% (NF34) and 73.2% (I-31)., Conclusions: The nematophagous fungi were able to capture and destroy the L3 in vitro and may be used as biological controls of Strongyloides stercoralis.

Introduction: Toxocara canis is an ascarid parasite of the small intestine of dogs that causes visceral larva migrans in humans., Methods: With the aim of demonstrating the effectiveness of the fungus Pochonia chlamydosporia on Toxocara canis eggs under laboratory conditions, a trial was set up in Petri dishes with 2% agar-water., Results: There was ovicidal activity of 43.8% (p < 0.01) in the treated group in relation to the control group over the periods studied., Conclusions: The results from the present study suggest that Pochonia chlamydosporia can potentially be used as an alternative biological control for embryonated Toxocara canis eggs.