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Comparative Virulence Assessment of Different Nematophagous Fungi and Chemicals against Northern Root-Knot Nematodes, Meloidogyne hapla, on Carrots

Comparative Virulence Assessment of Different Nematophagous Fungi and Chemicals against Northern Root-Knot Nematodes, Meloidogyne hapla, on Carrots

Manzoor Hussain*, Marie Maňasová, Miloslav Zouhar and Pavel Ryšánek

Department of Plant Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Kamýcká 961/129, 16500 Praha 6-Suchdol.

*      Corresponding author: hussain@af.czu.cz

 

ABSTRACT

Nematodes are considered to be the main pests in vegetables and crops. The problem is being increased due to lack of our farmer’s knowledge, repetition of the same crop in field, and non-awareness of pesticides applications. Ten isolates from seven different fungi, Arthrobotrys oligospora, Dactylella oviparasitica, Clonostachys rosea, Stropharia rugosoannulata, Lecanicillium muscarium,Trichoderma harzianum and Pleurotus ostreatus,along with two chemicals,Vydate and Basamid (G),were evaluated against northern root-knot nematodes, Meloidogyne hapla, on carrots in a greenhouse. All fungi and chemicals proved to be efficient in reducing the infestation level of Meloidogyne hapla and providing better growth of carrots compared to their controls. Maximum reductions in nematode population were observed in the plants treated with Lecanicillium muscarium and both chemicals. Lecanicillium muscarium treatments alone or with nematodes had significant (P = 0.01) positive effects on plant shoot and root growth among all other treatments in the experiment. After L. muscarium and the chemicals (Vydate and Basamid), Stropharia rugosoannulata ranked second in reducing the nematode numbers of galls, egg masses, and second-stage juveniles (J2) and rate of nematode reproduction (Pf/Pi) and improving plant growth factors. 
 

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Pakistan Journal of Zoology

December

Vol. 51, Iss. 6, Pages 1999-2399

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