Root lesion nematode, Pratylenchus loosi is one of the important damaging agent of tea crop in world and Iran which causing quantitative and qualitative damage to this crop. In this research, the effectiveness of Potassium Sulfite at the rate of 5, 10 and 15 g and chemical and organic nematicide of Flopiram (Velum) at 0.5, 1, and 1.5 ml, Cadusafos (Rugby) at 7.5 g, Nemaclean biofertilizer at 5, 15, and 20 ml for each young tea seedling along with healthy and infected control plants against root lesion nematode were evaluated. The experiment was conducted in a completely randomized block design with 12 treatments and 5 repetitions at Shaft Shahid Eftekhari tea research station (Fashalam) in the west of Guilan province. The studied indices were diameter, height, and weight, root mass, root fresh weight, shoot fresh and dry weight of seedling, nematode population in 100 g of soil, and in one gram of root measured and recorded, too. Results showed that Rugby treatment, in two indices of root mass and fresh root weight, Velum 1 treatment, in shoot fresh weight, Velum 1.5 and Potassium Sulfite 5, in shoot dry weight, Velum 1.5 in two nematode population indices in soil and roots, had the best effect. Results of this study revealed that the Rugby and Velum components had the greatest impact on performance indices. Potassium sulfite and Nemaclean compounds in terms of population reduction in the soil and roots, can be considered as a safe alternative in the integrated management of tea root lesion nematode.
Mehrzad Salakjani, S. , Jamali, S. , Seraji, A. and Safaei Chaeikar, S. (2025). Effect of potassium sulfite compared with biological and chemical components against tea root lesion nematode (Pratylenchus loosi). Journal of Applied Research in Plant Protection, (), 1-12. doi: 10.22034/arpp.2025.20281
MLA
Mehrzad Salakjani, S. , , Jamali, S. , , Seraji, A. , and Safaei Chaeikar, S. . "Effect of potassium sulfite compared with biological and chemical components against tea root lesion nematode (Pratylenchus loosi)", Journal of Applied Research in Plant Protection, , , 2025, 1-12. doi: 10.22034/arpp.2025.20281
HARVARD
Mehrzad Salakjani, S., Jamali, S., Seraji, A., Safaei Chaeikar, S. (2025). 'Effect of potassium sulfite compared with biological and chemical components against tea root lesion nematode (Pratylenchus loosi)', Journal of Applied Research in Plant Protection, (), pp. 1-12. doi: 10.22034/arpp.2025.20281
CHICAGO
S. Mehrzad Salakjani , S. Jamali , A. Seraji and S. Safaei Chaeikar, "Effect of potassium sulfite compared with biological and chemical components against tea root lesion nematode (Pratylenchus loosi)," Journal of Applied Research in Plant Protection, (2025): 1-12, doi: 10.22034/arpp.2025.20281
VANCOUVER
Mehrzad Salakjani, S., Jamali, S., Seraji, A., Safaei Chaeikar, S. Effect of potassium sulfite compared with biological and chemical components against tea root lesion nematode (Pratylenchus loosi). Journal of Applied Research in Plant Protection, 2025; (): 1-12. doi: 10.22034/arpp.2025.20281
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