Ampelomyces quisqualis
... that the mycoparasitic fungus Ampelomyces quisqualis attacks powdery mildew on crops such as cucumbers?
... that the <a href="./Mycoparasitism" id="mwAhg" rel="mw:WikiLink" title="Mycoparasitism">mycoparasitic</a> fungus <i id="mwAhk"><b id="mwAho"><a href="./Ampelomyces_quisqualis" id="mwAhs" rel="mw:WikiLink" title="Ampelomyces quisqualis">Ampelomyces quisqualis</a></b></i> attacks <a href="./Powdery_mildew" id="mwAhw" rel="mw:WikiLink" title="Powdery mildew">powdery mildew</a> on crops such as <a href="./Cucumber" id="mwAh0" rel="mw:WikiLink" title="Cucumber">cucumbers</a>?