EFFECT OF THE PSEUDOMONAS AERUGINOSA ON POTATO CYST NEMATODE GLOBODERA PALLIDA

The purpose of this study was to evaluate the efficiency Pseudomonas aeruginosa strain Dokkala (OK383444) isolate against cyst nematode Globodera pallida (MZ959187) as a biocontrol agent on potato nematode. test first conducted in vitro with bacterial suspensions at 105, 106, 107 and 108 CFU/mL 100 eggs, second-stage juveniles (J2), 10 cysts G. then vivo variety Desiree infested by greenhouse. Four plant growing parameters were evaluated treated plants P. presence pallida; height (cm), tuber weight (kg), wet dry (kg) aerial part, root length (cm). application reduced rate eggs 42% 56%. However, percentages colonized females bacteria not significant (8% 16% after 96 240 h, respectively), whereas normal J2 controls hatched 100% 48 h. Furthermore, treatment showed an enhancement 650 g 19.2 cm compared untreated Pallida 33.34% cysts. This research clearly indicates ability reduce density nematodes has potential for biological control pallida.