Development of Semiochemical Attractants for Monitoring and Controlling Chlorophorus caragana

Abstract

Chlorophorus caragana is an important wood-boring pest that infests Caragana korshinskii. The larvae bore into the stems to the point of hollowing them out, causing the whole tree to wither and even die. To control these infestations, volatile compounds were collected from C. korshinskii and used in electroantennography to ascertain which plant semiochemicals could be used to trap adult C. caragana in the fi eld. Isophorone, cis-3-hexen-1-ol, 3-pentanone, dibutyl phthalate, and diisobutyl phthalate were the main volatile compounds produced by C. korshinskii. These compounds induced dose-dependent electrophysiological responses in the antennae of adult C. caragana to some degree. Accordingly, 58 different compound mixtures were tested in fi eld trapping experiments over two consecutive years. Isophorone was most attractive to adult insects. In the fi eld, the best traps were funnelshaped ones hanging at a height of 1 m. The trapping effi ciency was 63.8%. Adult beetles appear between mid June and late August, with an eclosion peak in mid July. The prototype trapping system developed could be used as a tool to monitor and control C. caragana adults.

Ultrastructure and distribution of sensilla on the maxillary and labial palps ofChlorophorus caragana(Coleoptera: Cerambycidae)

“…(Fabales: Papilionaceae; Zong, Xie, Wang, Luo, & Cao, ; Zhang, Ren, Zhang, & Luo, ). The larvae feed on the trunk of the plant, and the damage from extensive boring can cause the trees to be blown over by strong winds (Zong et al, ). Up to 70% of all C. davazamcii bushes are damaged in most regions of Ningxia, China, directly affecting the local environment and economy.…”

“…Up to 70% of all C. davazamcii bushes are damaged in most regions of Ningxia, China, directly affecting the local environment and economy. We previously studied the basic bioecological relationships and plant attractants of C. caragana (Zong et al, ).…”

Sugarcane Wax Metabolites and Their Toxicity to Silkworms

“…Interestingly, we found naphthalene and isophorone were the two most abundant metabolites in the wax samples, which are two metabolites reported as being associated with insect resistance in plants [ 29 , 30 , 31 , 32 , 33 ]. Naphthalene is one of the ingredients of insect repellents [ 37 , 38 ], while isophorone can be found in an insect attractant [ 39 , 40 , 41 ], which may suggest that metabolites isolated, purified and formulated from sugarcane wax could be used to control sugarcane borers. In addition, Wartha (2022) reported that specific sugarcane wax metabolites were associated with insect resistance of sugarcane germplasm [ 14 ].…”

Honey Norisoprenoids Attract Bumble Bee, Bombus terrestris, in New Zealand Mountain Beech Forests

“…and is attractive to the wood-boring beetle Chlorophorus caragana (Chevrolat). 34 It is also produced by Atlantic salmon, Salmo salar (Linnaeus), and was shown to significantly attract the sea lice, Lepeophtheirus salmonis (Krøyer) (Ingvarsdottir et al, 2002). Compared with the benzene derivatives, isophorone might be a more unique and more distinguishable chemical cue for bumble bees in the mountain beech habitat and a more specific cue for carbohydrate resources.…”