Ec. Tjamos et Dr. Fravel, DISTRIBUTION AND ESTABLISHMENT OF THE BIOCONTROL FUNGUS TALAROMYCES-FLAVUS IN SOIL AND ON ROOTS OF SOLANACEOUS CROPS, Crop protection, 16(2), 1997, pp. 135-139
Ascospores of Talaromyces flavus were applied to eggplant, tomato and
potato as either a drench or in spherical granules (alginate prill). I
n subsequent samplings, the percentage colonization of roots was signi
ficantly greater than that of root tips. However, when populations of
T. flavus were expressed as colony forming units g(-1) fresh weight, r
ecovery of T. flavus was significantly greater in root tips. Populatio
ns were lower in rhizosphere soil than from roots and root tips and po
pulations in non-rhizosphere soil were the lowest of any location. Vig
orous washing of the roots removed most of the T. flavus, indicating t
hat T. flavus was superficially associated with the roots. Populations
of T. flavus were greater when it was applied as a drench rather than
in prill.