Mortality and movement behaviour of Bursaphelenchus xylophilus under different dosages of copper sulphate

Abstract

Tan Q.Q., Wu H.Y., Jiang S.X., Ma H.B. (2013) The effects of in vitro exposure to different concentrations of copper sulphate for different durations on the mortality and locomotor behaviour of Bursaphelenchus xylophilus were evaluated. Copper sulphate showed strong effects against the nematode B. xylophilus at a low concentration (5 mg/l). The median lethal concentration (LC 50 ) at 8, 24, 48, and 72 h were 31.634, 7.353, 6.557, and 5.568 mg/l, respectively. Mortality rate of B. xylophilus after treatment with various concentrations of copper sulphate for 6, 8, 24, 48, and 72 h were significantly different compared with control animals exposed to distilled water (P < 0.01). Locomotor activity of the nematodes decreased with increased duration of exposure and was completely lost after 8 h of exposure to 100 mg/l copper sulphate. Our results indicate that copper sulphate is effective against B. xylophilus and restricts their harmful effects on plants at least in part by inhibiting their movement.

Evaluation of the fungicide treatment with copper oxide and potassium phosphonate solutions for the sustainable management of P. pinaster trees infected with B. xylophilus

“…Several Cu-containing proteins play critical roles in photosynthesis, respiration, superoxide radical detoxi cation, and ligni cation ( Fungicides such as copper sulphate, in which the main active ingredient is Cu, have shown in vitro nematicidal activity, causing high mortality and decreasing the mobility of B. xylophilus (Tan et al 2013).…”

“…Copper is a vital mineral and critical component of plant defensive pathways, resulting from its antimicrobial properties and function as a co-factor of several essential enzymes (Borgatta et al 2018, Strayer-Scherer et al 2018, Mir et al 2021. This compound has shown in vitro nematicidal activity against B. xylophilus and other plant pathogenic nematodes (Tan et al 2013, Mohamed et al 2019). Likewise, potassium phosphonate (PP), a phosphonic acid salt, is a systemic fungicide that activates SAR and local acquired response (LAR).…”

Nematicidal Effects of Volatile Organic Compounds from Microorganisms and Plants on Plant-Parasitic Nematodes

“…In addition, the pine wood nematode (PWN), Bursaphelenchus xylophilus, is the pathogen behind pine wilt disease, which causes serious damage to pine species in many countries [8,9]. In China, B. xylophilus is widely spread and causes billions of dollars of economic losses annually [10].…”

Predicting the Potential Distribution of Pine Wilt Disease in China under Climate Change

“…If a tree is infected with PWD, it can die within a few months [24]. PWD has severely been threatening pine resources in China, causing significant economic losses and ecological consequences to pine forests [25,26]. There were 718 county-level administrative regions in 17 provinces of China damaged by PWD, with 19.5 million dead trees and approximately 1.81 million hectares infected by the end of December 2020 [26].…”