IMPROVED SEX ATTRACTANT BLEND FOR ADULT MALES OF THE GLASSY CUTWORM, CRYMODES DEVASTATOR (LEPIDOPTERA: NOCTUIDAE)

1980 ◽  
Vol 112 (7) ◽  
pp. 751-752 ◽  
Author(s):  
W. F. Steck ◽  
E. W. Underhill ◽  
B. K. Bailey ◽  
M. D. Chisholm

We reported previously (Steck et al. 1977) that equal-parts mixtures of (Z)-11-hexadecenal (Z11-16:Ald) and (Z)-11-hexadecenyl acetate (Z11-16:Ac) attract male Crymodes devastator (Brace) moths to field traps, and that attraction is enhanced by incorporation of (Z)-7-dodecenyl acetate (Z7-12:Ac) in the lure. During subsequent studies with sex lures for this species we discovered that (Z)-11-hexadecenol (Zll-16:OH) is much more effective than Z7-12:Ac as a trapping synergist.During 1978 many structural analogs of the sex attractant components were tested as lure synergists by adding 20% of each analog to a basic 2:l Z11-16:Ald + Z11-16:Ac lure, using numbers of males trapped as the criterion of effect. Z5- and Z7-10:Ac; Z5-, Z7-, and Z9-12:Ac; Z5-, Z7-, Z9-, and Z11-14:Ac; Z5-, Z7-, and Z9-16:Ac were tested in this way, as were the corresponding alcohols and aldehydes and Zll-16:OH. The (E) isomers of these along with Ell-16:Ald and E11-16:Ac were finally tested.

1978 ◽  
Vol 110 (7) ◽  
pp. 769-773 ◽  
Author(s):  
D. L. Struble ◽  
G. E. Swailes

AbstractField testing of a large number of synthetic compounds and many combinations of them revealed that male moths of the pale western cutworm, Agrotis orthogonia Morrison, were attracted to combinations of Z-5-dodecen-1-yl acetate and Z-7-dodecen-1-yl acetate. The most satisfactory attractants were combinations of these two compounds in ratios of 1:2 to 1:5 at 10 to 25 μg/septum dispenser. The effect of the attractant was strongly inhibited by the addition of 21% Z-7-dodecen-1-ol.


1982 ◽  
Vol 114 (4) ◽  
pp. 359-362 ◽  
Author(s):  
D. L. Struble ◽  
W. F. Steck ◽  
G. E. Swailes ◽  
M. D. Chisholm ◽  
E. W. Underhill ◽  
...  

AbstractMale moths of striped cutworm, Euxoa tessellata (Harris), were specifically attracted to blends of Z-5-tetradecenyl acetate or Z-5-hexadecenyl acetate with Z-7-hexadecenyl acetate. The most satisfactory quantities of these components per septum dispenser were: Z-5-tetradecenyl and Z-7-hexadecenyl acetates at 2.5 and 500 μg, or Z-5-hexadecenyl and Z-7-hexadecenyl acetates each at 500 μg. The addition of 1.0% Z-7-hexadecenol relative to Z-7-hexadecenyl acetate in either of these blends inhibited the attraction of males. The blend involving Z-5-tetradecenyl acetate is recommended for monitoring purposes.


1989 ◽  
Vol 121 (7) ◽  
pp. 557-563 ◽  
Author(s):  
D.L. Struble ◽  
J.R. Byers ◽  
R.F. Shepherd ◽  
T.G. Gray

AbstractThe sex pheromone components of the black army cutworm, Actebia fennica (Tauscher), were identified in abdomen-tip extracts from calling female moths. The primary pheromone component was (Z)-7-dodecenyl acetate. Although (Z)-11-tetradecenyl acetate was detectable only in trace quantities in the extracts, it was the major component in the best synthetic blend for attraction of male moths. The most effective synthetic blend was (Z)-7-dodecenyl acetate and (Z)-11-tetradecenyl acetate at a ratio of 1:20. No other component detected in the extracts increased trap capture of males when added to the two-component blend; however, (Z)-5-dodecenyl acetate, (Z)-7-dodecenol, and (Z)-9-tetradecenyl acetate reduced catches. This two-component blend will be useful for studying the habits of the adults and for population monitoring.


2010 ◽  
Vol 142 (2) ◽  
pp. 135-142 ◽  
Author(s):  
Peter J. Landolt ◽  
D. Thomas Lowery ◽  
Lawrence C. Wright ◽  
Constance Smithhisler ◽  
Christelle Gúedot ◽  
...  

AbstractLarvae of Abagrotis orbis (Grote) (Lepidoptera: Noctuidae) are climbing cutworms and can damage grapevines, Vitis vinifera L. (Vitaceae), in early spring by consuming expanding buds. A sex attractant would be useful for monitoring this insect in commercial vineyards. (Z)-7-Tetradecenyl acetate and (Z)-11-hexadecenyl acetate were found in extracts of female abdominal tips. In multiple field experiments, male A. orbis were captured in traps baited with a combination of these two chemicals but not in traps baited with either chemical alone. Males were trapped from mid-September to early October in south-central Washington and south-central British Columbia. Other noctuid moths (Mamestra configurata Walker, Xestia c-nigrum (L.), and Feltia jaculifera (Guenée)) were also captured in traps baited with the A. orbis pheromone and may complicate the use of this lure to monitor A. orbis. Abagrotis discoidalis (Grote) was captured in traps baited with (Z)-7-tetradecenyl acetate but not in traps baited with the two chemicals together.


1982 ◽  
Vol 114 (11) ◽  
pp. 1101-1103
Author(s):  
D. G. R. McLeod ◽  
T. Nagai ◽  
A. N. Starratt ◽  
C. Bonenfant ◽  
E. W. Rud ◽  
...  

The white cutworm, Euxoa scandens (Riley), is a sporadic pest of tobacco in Quebec (Mailloux and Desrosiers 1978), asparagus in Michigan (A. L. Wells, pers. comm.), and other vegetable crops grown in light sandy soils (Beirne 1971). The immature larvae overwinter and cause serious damage when they resume feeding in the spring (Hudson and Wood 1930). Moths emerge and oviposit from late June until late July (McLeod and Dupré 1981). An efficient monitoring method utilizing the female sex pheromone would be an important aid in estimating the size and distribution of the adult population and would help in planning insecticide control. We report here some results of electroantennogram screening of potential sex attractants and the results of field tests of the most active of these.


1980 ◽  
Vol 35 (11-12) ◽  
pp. 990-994 ◽  
Author(s):  
Ernst Priesner

Electrophysiological analysis of olfactory hair sensilla in male P. pisi has revealed four different types of presumed pheromone receptor cells, maximally responsive to (Z)-11-tetradecenyl acetate (Z11-14:Ac), (Z)-9-tetradecenyl acetate (Z9-14:Ac), (Z)-11-hexadecenyl acetate (Z11-14:Ac) and (Z)-7-dodecenyl acetate (Z7-12: Ac), respectively. These four compounds were tested, singly and in various combinations, for efficacy in attracting P. pisi males in the field. High trap catches were obtained with mixtures of Z11-14: Ac/Z9-14: Ac in the ratio 100/100, whereas the 100/30 and 30/100 mixtures of the two compounds were only slightly attractive. No male P. pisi were captured by single chemicals or binary combinations of Z11-14: Ac/Z11-16: Ac, Z11-14:Ac/Z7-12:Ac, Z9-14:Ac/Z11-16:Ac, Z9-14:Ac/Z7-12:Ac, or Z11-16:Ac/Z7-12:Ac. Various compounds, including Z11-16: Ac and Z7-12:Ac, were tried as third chemicals in addi­tion to 100 μg Z11-14: Ac + 100 μg Z9-14: Ac but none increased trap catches over the basic lure.


1978 ◽  
Vol 7 (3) ◽  
pp. 384-386 ◽  
Author(s):  
D. L. Struble ◽  
G. E. Swailes

2000 ◽  
Vol 35 (3) ◽  
pp. 259-266 ◽  
Author(s):  
O. G. Marti ◽  
C. E. Rogers

Noctuidonema guyanense Remillet and Silvain is an ectoparasitic nematode of certain species of adult Lepidoptera, particularly Noctuidae, in the Western Hemisphere. It is transferred to a new host when the insects mate. Survival of infested and uninfested feral adult males of Spodoptera frugiperda (J. E. Smith), the fall armyworm, was compared at three different temperature regimens (20°C, 30°C, and 30/20°C) at 14:10 L/D at 80% RH. Apparent age differences were controlled by pairing moths having the same amount of scale loss. Overall mean nematode infestations of 239.3 and 0 in infested and uninfested groups produced significantly different mean longevity of 3.7 and 6.2 days, respectively. At 20°C, survival of both groups increased to 6.2 and 13.3 days, but remained significantly different. The results demonstrate a deleterious effect of Noctuidonema infestation on longevity of feral adult male S. frugiperda.


1987 ◽  
Vol 119 (3) ◽  
pp. 301-303
Author(s):  
D.L. Struble ◽  
G.L. Ayre ◽  
J.R. Byers

The strawberry cutworm, Amphipoea interoceanica (Smith), has recently become an important pest of strawberry plants in Manitoba (Ayre 1980) and Quebec (Mailloux and Bostanian 1985). Larvae damage or kill the plants and commercial plantings are sometimes heavily damaged. Strawberry cutworm is widely distributed in North America and is broadly sympatric with a morphologically similar species, Amphipoea americana (Speyer) (Forbes 1954), which is occasionally a pest of corn (Gibson 1920). Sex pheromones of these species have not been reported, although Roelofs and Comeau (1971) found that males of strawberry cutworm were attracted to (Z)-9-tetradecenyl acetate (abbrev. Z9- 14:Ac). A sex attractant for strawberry cutworm would provide a convenient method for monitoring population levels in the vicinity of strawberry fields.


1979 ◽  
Vol 111 (1) ◽  
pp. 11-14 ◽  
Author(s):  
G. E. Swailes ◽  
D. L. Struble

AbstractSex attractant traps for males of the clover cutworm, Scotogramma trifolii (Rottenberg), on farms in southern Alberta caught more moths within crops or on fallow than those near or within the farmyards except for traps immediately on the south side of the yard For males of the army cutworm, Euxoa auxiliaris (Grote), two trap placements in open areas were more effective than locations within the farmyard, again with the exception of the traps on the south side of the yards. Traps 2 m high caught significantly fewer moths than those at 1 m or ground level and the crop in which the trap was placed had no significant influence on catch of either cutworm.


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