Resumo

PUERTAS, Ana  e  HIDALGO-DIAZ, L. EFFECT OF DIFFERENT ORGANIC MANURES OVER Pochonia chlamydosporia var. CATENULATA IN THE SUBSTRATE AND RHIZOSPHERE OF TOMATO PLANTS. Rev. Protección Veg. [online]. 2009, vol.24, n.3, pp.162-165. ISSN 1010-2752.

The intensive and systematic use of organic manures is a common practice in the urban agriculture in Cuba. An experiment was carried out to determine the effect of different organic manures on the establishment of the root knot nematode biological control agent Pochonia chlamydosporia var. catenulata, in pots under glasshouse conditions. Tomato substrate and rhizosphere colonization by the strain IMI SD 187 of P. chlamydosporia var. catenulata were studied in substrates made of soil, cattle manure and earthworm humus in different proportions. The levels of the fungal colonization in soil and tomato roots were high in all the treatments and the highest values of root colonization tend to happen in the organic manure sources that provided the less or medium substrate colonization. The results proved that both organic manures can be employed as support of P. chlamydosporia var. catenulata applications, at the time and quantities established by the urban agriculture in Cuba.

Palavras-chave : root-knot nematodes; Pochonia chlamydosporia var. catenulate; biological control agent; organic matures; urban agriculture.

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