تأثير مستويات مختلفة من أبواغ بكتريا Pasteuria penetrans في نيماتودا تعقد الجذور Meloidogyne javanica على البندورة-الطماطم

Abstract EN

Five different levels of spores load on second stage juveniles (J2) (1-5, 6-10, 11-20, 21-40 and more than 40 spores / juveniles) were tested to assess the biocontrol efficiency and the threshold level of spores / J2 for mass propagation of P.

penetrans.

results showed that 21-40 and more than 40 spores / J2 were more efficient (0.05) in reducing the number of nematode eggs and females on roots compared to the nematode treatment.

11-20 spore / J2 showed the highest percentage of J2 encumbered in soil (57.3%) and also the highest number of bacteria-infected females in roots compared to the other treatments.