Feb 1, 1982 · A sex pheromone has been isolated and identified from virgin females of the western corn rootworm (WCR),Diabrotica virgifera virgifera LeConte. The synthesized compound, racemic 8-methyl-2-decanol

the HPLC column with 2% 1-hexene in hexane. Female pheromone emissions were quantifiedby 24h col-lectionsof volatiles from individual 3–5 d-old virgin females. Quantifications ofpheromone emissions and dosingsolutions used in the flight tunnel bioassays and field trapping were performed by GC-FID with nonadecane as an internal standard.

Aijiren Tech Sun SRi. open top closures fit all SUN-SRi 13-425 screw thread vials Pre-assembled septa allows for vacuum release where more than half of vial contents will be removed Integral septum caps are an economical choice for HPLC applications Bonded septa caps resist dislodging during injection during use of. Compare this item.

both 300 „g/septa and 176 „g/septa, and the mix of the five ketones together at 300 „g/septa. Four replicates of the three treatments were tested during June and July at an infested Massachusetts bog. Traps were checked three times and rerandomized each time. Statistics. Numbers of beetles caught in the field in the various treatments

Jun 6, 2020 · Females remained alive and produced pheromone for at least one week under these conditions. Over the course of 6 months, volatiles were collected from 17 cohorts of 100–200 females per bottle, as well as from individual females, accumulating volatiles from roughly 2500 virgin females.

Our analytical and bioassay data indicate that 13–14:OAc is the major and likely only component of the female-produced sex pheromone of M. communis. Male M. communis were not attracted to lures

Volatiles collected from virgin adult females were fractionated by high performance liquid chromatography (HPLC) and gas chromatography, and fractions were tested for attractiveness to males in a laboratory bioassay.

HPLC) and digital polarimetry to isolate and determine the ab-solute configuration of a component of the female-produced contact sex pheromone of the cerambycid beetle, Neoclytus acuminatus acuminatus (F.). The pheromone consists of 7-methylpentacosane (7-MeC 25), 7-methylheptacosane (7-MeC 27), and 9-methylheptacosane (9-MeC 27). The absolute

A sex pheromone has been demonstrated for the SCR, and Branson et al. (1978) showed that males ofD. u. duodecimnotata in Mexico are attracted to traps baited with unfractionated volatiles from female SCR originating in South Dakota. This paper reports the isolation, identification, and synthesis

Role of female-produced sex pheromone in behavioral reproductive isolation between Trichoplusia ni (Hübner) and Pseudoplusia includens (Walker) (Lepidoptera: Noctuidae, plusiinae) Peter J. Landolt & Robert R. Heath Journal of Chemical Ecology 13 , 1005–1018 ( 1987) Cite this article 91 Accesses 34 Citations Metrics Abstract

MacCarter, 1972; Risch, 1976). The presence of a BCB female-produced sex pheromone, which should be useful in monitoring and possibly in controlling this species, was reported by Cuthbert and Reid (1964). Later Schwarz et al. (1971) reported that the BCB pheromone molecule included n-dodecenyl, eth-

composition of the female sex pheromone in Carcinus maenas using a bioassay-guided purification and analysis scheme coupled with high-performance liquid chromatography (HPLC) separation methods (Hardege et al. 2002) to isolate bioactive compounds from both urine and ‘conditioned seawater,’ each known to con-tain the female cue (Hayden et al

A sex pheromone produced by female banded cucumber beetle adults, Diabrotica balteata LeConte, was isolated from volatiles trapped on Porapak Q and identified as 6,12-dimethylpentadecan-2-one. The structure was elucidated by spectroscopic analyses and confirmed by synthesis.

Both the pure (R)-enantiomer or racemic (Z)-2-acetoxy-8-heptadecene, applied to red rubber septa in a dose range of 3–30 μg, constitute a strongly attractive bait in sticky traps for monitoring the flight of D. gleditchiae. The honey locust gall midge, Dasineura gleditchiae Osten Sacken 1866 (Diptera: Cecidomyiidae) is the main pest of ornamental varieties of the honey locust tree