Nematicidal and Toxicity Effects of Eupatorium adenophorum Spreng against the Root-Knot Nematode Meloidogyne incognita in Soil Producing Cucumber

Shiva Parsiaaref, Aocheng Cao, Yuan Li (), Asgar Ebadollahi, Ghasem Parmoon, Qiuxia Wang, Dongdong Yan, Wensheng Fang and Min Zhang
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Shiva Parsiaaref: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Aocheng Cao: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Yuan Li: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Asgar Ebadollahi: Department of Plant Sciences, Moghan College of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil 5697194781, Iran
Ghasem Parmoon: Sugar Beet Research Department, Kermanshah Agricultural and Natural Resources Research and Education Center, AREEO, Kermanshah 671451661, Iran
Qiuxia Wang: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Dongdong Yan: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Wensheng Fang: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Min Zhang: Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China

Agriculture, 2023, vol. 13, issue 6, 1-12

Abstract: The root-knot nematode ( Meloidogyne incognita ) is a plant pathogen that causes significant economic damage to important food crops. The nematicidal and insecticidal effects of the essential oil and extract of the root and stem of different species of Eupatorium have been studied in several countries. We investigated the impact of root stems and leaves of the E. adenophorum on the second-stage juveniles (J2s) of M. incognita . Nematode mortality decreased by root-stem treatment and increasing temperature and time. Nematodes (J2) were more sensitive to root-stem treatment than leaf treatment at all tested conditions. For example, the half maximal effective concentration (EC 50 ) root-stems at 35 °C was estimated as 10.3 mg/g and in the 8th week as 7.8 mg/g, while the maximal effective concentration (EC max ) in leaf treatment is 20.3 and 10.1 mg/g, respectively. The E. adenophorum 40 mg/g concentration of root stems also produced the highest height of the cucumber stem and the highest cucumber fresh weight in the greenhouse. (E)-beta-farnesene, α-pinene and D-limonene, as the main identified components in fumigant plants, increased the mortality rate of J2s in root-stems treatment. We conclude that E. adenophorum dried root stems added to the soil in greenhouses have the potential as a bio-fumigant for M. incognita management.

Keywords: bio-fumigant; Eupatorium adenophorum; Meloidogyne incognita; root-knot nematode; RKN; (E)-beta-farnesene; α-pinene; D-limonene (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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