Antagonismo de dos Ascomicetos Contra Phytophthora capsici Leonian, Causante de la Marchitez del Chile (Capsicum annuum L.) Antagonism of two Ascomycetes Against Phytophthora capsici Leonian, Causing Wilt of Pepper (Capsicum annuum L.)

In this study we evaluated the antagonistic activity and protection of seedlings in vitro of the ascomycete Xylaria poitei, and its antagonistic activity in combination with an unknown ascomycete (AD) against P. capsici, the cause of wilt in pepper. Xylaria poitei protected pepper seedlings and allowed 58.3% survival of seedlings, while the oomycete caused 100% mortality, besides this fungus inhibited the mycelial growth of P. capsici up to 49.6% in one of the experiments where they settled dual confrontations. In triple confrontations both ascomycetes increase slightly their inhibition at 12 days of confortation against P. capsici, and still maintain the inhibition of the oomycete four days later. It was observed that both ascomycetes stimulare or inhibit each other growth at some time during the evaluation of