Abstract

MURGA-GUTIERREZ, Santos Nélida; ALVARADO-IBANEZ, Juan Carlos  and  VERA-OBANDO, Nora Yessenia. Effect of the foliage of Tagetes minuta on Meloidogyne incognita root-galling on Capsicum annuum in a greenhouse. Rev. peru biol. [online]. 2012, vol.19, n.3, pp.257-260. ISSN 1727-9933.

The effect of the foliage of Tagetes minuta "huacatay" on Meloidogyne incognita root-galling on Capsicum annuum "paprika pepper" cultured in a greenhouse was researched, to obtain a control strategy for this nematode. Three experimental groups and one control with 12 pots each were used, which contained sterilized soil and sand (1:1). To this substrate was added cut foliage of T. minuta at 20, 35 and 50% (v/v) according to the experimental group, and the control group remained without this amendment. In each pot a seedling of C. annuum was sown, and one week post-seeding was inoculated with 5000 eggs of M. incognita. Eight weeks later the root galling was evaluated. All the plants had root galling; although the number of galls in plants of the experimental groups was less than those in the control group with statistical significant difference (p< 0.05). Among the numbers of galls in the plants of the three experimental groups there was no significant difference (p> 0.05). It is concluded that the foliage of T. minuta added as organic amendment at 20, 35 and 50% to the culture soil for C. annuum plants limits the M. incognita root galling. That suggests its potential use in the control of this nematode

Keywords : nematicide; plant nematode; Capsicum annuum; organic amendment.

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