Abstract
Popillia quadriguttata (Fabricius), and Protaetia brevitarsis (Lewis) adults were captured with Japanese beetle, Popillia japonica Newman, sex attractant and floral lures at Changchun, China during July–August 2012. The floral lure (phenethyl propionate:eugenol:geraniol, 3:7:3) was attractive to male and female P. quadriguttata (AV: 1.2±0.9; 1.1±0.3; total: 2.3±0.8), and was similar in attraction to the combination of the sex attractant (SA) [(R, Z)-5-(1-decenyl) dihydro-2(3H)-furanone] plus the floral lure for male (1.60±0.2), female (1.30±1.1) and total captures (2.9±3.0). However, the SA alone captured only males in much higher numbers than when combined with the floral lure (10.0±6.4). In a separate earlier test, the greatest number of P. quadriguttata males (12.5±3.0), female (12.2±1.5) and total captures (24.7±2.5) was in yellow, laboratory-made, bottle traps. The floral lure also attracted female Pro. brevitarsis (10.0±3.4), while the SA attracted only few male beetles (1.0±0.2). The combination SA+floral lure captured similar females (11.0±2.0) and total (14.2±2.2) Pro. brevitarsis as the floral lure alone. Two butterflies, Colias erate poliographus (Motschulsky) and Pieris rapae (Linnaeus), were also attracted to the floral lure. These studies indicate a potential for replacing pesticides by using the Japanese beetle lures for monitoring and control of several insects in China, and that they would be useful in monitoring and eradication of two potential scarab pests, P. quadriguttata and Pro. brevitaris, in the United States and Europe.
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