Plant bugs (Hemiptera: Miridae) on field beans and soybeans in Manitoba, Canada: species composition and seasonal occurrence

2015 ◽  
Vol 147 (6) ◽  
pp. 766-775 ◽  
Author(s):  
T. Nagalingam ◽  
N. J. Holliday
Keyword(s):  
Species Composition ◽  
Second Generation ◽  
Seed Quality ◽  
Lygus Lineolaris ◽  
Late Season ◽  
Summer Generation ◽  
Adelphocoris Lineolatus ◽  
Late Instar ◽  
Field Beans ◽  
Sweep Net

AbstractIn Manitoba, Canada, commercial soybeans and two types of field beans, navy and pinto, were sampled for plant bugs. At the centre and margins of 36 fields, sweep net and tap tray samples were taken weekly. In all three crops, Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae) comprised >78% and Adelphocoris lineolatus (Goeze) (Hemiptera: Miridae) <10% of adult mirids. Species composition varied among years but not among crops. For Lygus Hahn, nymphs were 46% of the catch in trays and 23% in sweeps, but total Lygus catch in trays was >2% of that in sweeps. Catch/sample effort was similar at field centres and margins for both Lygus adults and nymphs. Lygus lineolaris reproduced and developed in all three crops. In field beans, Lygus adults were first collected in late vegetative and early pod set stages and late instar nymphs and adults were present from pod elongation until maturity – results consistent with immigration of first summer generation reproductive adults and development of the second generation in the crops. There was evidence of late season immigration of Lygus into all crops. There was no loss of seed quantity attributable to mirids in any of the crops; in field beans there was no evidence that mirids reduced seed quality.

Seasonal occurrence, species composition, and parasitism of Lygus spp. in alfalfa, canola, and mustard

2001 ◽  
Vol 133 (4) ◽  
pp. 565-577 ◽  
Author(s):  
L. Braun ◽  
M. Erlandson ◽  
D. Baldwin ◽  
J. Soroka ◽  
P. Mason ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Species Composition ◽  
Medicago Sativa ◽  
Sinapis Alba ◽  
Seasonal Occurrence ◽  
Lygus Lineolaris ◽  
Late Season ◽  
Predominant Species

AbstractField collections of over-wintering and summer adults and nymphs of Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae), Lygus borealis (Kelton), and Lygus elisus Van Duzee were made weekly in five fields in Saskatchewan in 1998 and 1999. The crops sampled were alfalfa, Medicago sativa L. (Leguminosae), canola, Brassica napus L. (Cruciferae), and mustard, Sinapis alba L. (Cruciferae), at Vonda, and alfalfa and canola at Saskatoon. In alfalfa, the most abundant Lygus spp. found in May and June were over-wintering adult L. lineolaris and (or) L. borealis; the predominant species in mid-June to early July was L. borealis; and the population from mid-July to late August was dominated by L. lineolaris. In canola, adult populations of Lygus spp. were not found until mid-June. The predominant species, L. lineolaris, probably over-wintering adults, was first detected in canola at the early bud stage in late June to early July; high numbers of L. lineolaris adults occurred in canola in mid-August. Populations of Lygus spp. in organic mustard were negligible. Dissections of field-collected Lygus spp. nymphs revealed parasitism in up to 70% of the midsummer population in alfalfa. In contrast, less than 1% of the late-season Lygus spp. population, primarily L. lineolaris in canola and L. lineolaris and L. borealis in alfalfa, was parasitized.

Tarnished Plant Bug (Hemiptera: Miridae) on Selected Cool-Season Leguminous Cover Crops

1990 ◽  
Vol 25 (3) ◽  
pp. 463-474 ◽  
Author(s):  
Robert L. Bugg ◽  
Felix L. Wäckers ◽  
Kathryn E Brunson ◽  
Sharad C. Phatak ◽  
James D. Dutcher
Keyword(s):  
Cover Crops ◽  
Subterranean Clover ◽  
Trifolium Subterraneum ◽  
Field Trials ◽  
Lygus Lineolaris ◽  
Cool Season ◽  
Tarnished Plant Bug ◽  
Trifolium Incarnatum ◽  
Crimson Clover ◽  
Late Instar

Replicated field trials indicated that tarnished plant bug (TPB), Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae) attained relatively-high densities on hybrid vetches, Vicia sativa L. X V. cordata Wulf cv ‘Cahaba White’ and ‘Vantage’, lower densities on crimson clover, Trifolium incarnatum L. cv ‘Dixie,’ and particularly-low densities on subterranean clover, Trifolium subterraneum L. cv ‘Mt. Barker’. Densities of TPB were also relatively low on an additional 10 types of subterranean clover, including 7 cultivars representing T. subterraneum, 1 cultivar of T. brachycalycinum Katznelson and Morley, and 3 of T. yanninicum Katznelson and Morley. Field longevity trials indicated that late-instar and adult TPB lived longer when caged on crimson clover than on hybrid vetch, which in turn supported better survival than did subterranean clover. When adult TPB were caged on hybrid vetch or subterranean clover with or without floral and fruiting structures, there was no evidence that the presence of these structures prolonged TPB survival on either crop. In laboratory choice tests with flowering and fruiting shoots of three cover crops, TPB preferred crimson clover over hybrid vetch, which in turn was more attractive than subterranean clover. When shoots were presented after reproductive structures had been excised, there was no statistically-significant preference by TPB.

THE MIRID (HEMIPTERA) FAUNA OF SOLIDAGO CANADENSIS (ASTERACEA) IN SOUTH-EASTERN ONTARIO

1976 ◽  
Vol 108 (6) ◽  
pp. 561-567 ◽  
Author(s):  
D.G. Reid ◽  
C. C. Loan ◽  
R. Harmsen
Keyword(s):  
Relative Abundance ◽  
Species Differences ◽  
Lygus Lineolaris ◽  
Solidago Canadensis ◽  
Characteristic Sequence ◽  
Late Season ◽  
Group Of Seven ◽  
South Eastern ◽  
Eastern Ontario

AbstractForty-six species of adult Miridae were recorded from Solidago canadensis L. in south-eastern Ontario. Major resident (breeding) species were determined on the basis of the relative abundance of nymphal and adult populations recorded from six plot-years. Although the composition of the mirid fauna varies temporally, over 90% of the Miridae belong to the following group of seven species: Slaterocoris breviatus (Kngt.), S. atritibialis (Kngt.), Lygus lineolaris (Beauv.), L. vanduzeei Kngt., Plagiognathus cuneatus Kngt., P. politus Uhl., and Polymerus venaticus (Uhl.).Total nymphal abundance is seasonally bimodal, relating to species differences in overwintering stage. The Lygus species overwinter as adults, and nymphs are abundant primarily in August, The remaining five species overwinter as eggs and their nymphs are present primarily during May to mid-July. In contrast to the bimodal phenology exhibited by nymphs, adults are temporally grouped in the mid- to late season, with adults of both overwintering classes overlapping. The adults, however, follow a characteristic sequence of initial occurrence, from early to late season, of: S. atritibialis, P. venaticus, L. vanduzeei, S. breviatus, P. politus, P. cuneatus, and L. lineolaris.

Effects of Plant Density and Late-season Defoliation on Yield of Field Beans

1987 ◽  
Vol 16 (1) ◽  
pp. 274-280 ◽  
Author(s):  
John L. Capinera ◽  
David R. Horton ◽  
Nancy D. Epsky ◽  
Phillip L. Chapman
Keyword(s):  
Plant Density ◽  
Late Season ◽  
Field Beans

SEASONAL OCCURRENCE AND NUMBER OF GENERATIONS OF LYGUS LINEOLARIS AND L. BOREALIS (HETEROPTERA: MIRIDAE) IN SOUTHERN MANITOBA

1995 ◽  
Vol 127 (4) ◽  
pp. 543-559 ◽  
Author(s):  
G.H. Gerber ◽  
I.L. Wise
Keyword(s):  
Oilseed Rape ◽  
Overlapping Generations ◽  
First Generation ◽  
Second Generation ◽  
Seasonal Occurrence ◽  
Lygus Lineolaris ◽  
Thlaspi Arvense ◽  
Two Generations ◽  
Agricultural Areas ◽  
Field Plots

AbstractThe seasonal occurrence and number of generations of Lygus lineolaris (Palisot de Beauvois) were studied on alfalfa (Medicago sativa L.), everbearing strawberries (Fragaria × ananassa Duchesne), oilseed rape (Brassica napus L.), and stinkweed (Thlaspi arvense L.) in field plots at Winnipeg, Manitoba, and in commercial alfalfa and oilseed rape fields throughout the agricultural areas of Manitoba in 1990–1993. Lygus borealis (Kelton) was studied only during 1993. Lygus lineolaris had two non-overlapping generations in southern Manitoba. Overwintered adults migrated onto host plants during die first 3 weeks of May, and females containing chorionated eggs were found in relatively small numbers for 5–6 weeks until the last 3 weeks of June. First-generation nymphs were present from the last half of May until the last half of July. During the last 2 weeks of June, the overwintered adults disappeared suddenly and were replaced completely by first-generation adults. First-generation adults eclosed during the last 2 weeks of June and in July, and first-generation females containing chorionated eggs were present for about 6–7 weeks until mid-August. Second-generation nymphs first appeared in late July or early August and most completed development by the end of September. Second-generation adults were found from the first half of August until they hibernated in October and November. Most second-generation females contained previtellogenic eggs and. therefore, were in reproductive diapause. In 3 of the 4 years, the overwintered adults appeared to include all second-generation adults plus 0–20% of the first-generation adults. The data from commercial alfalfa and oilseed rape fields indicated that the seasonal occurrence of L. lineolaris was relatively uniform in most or all agricultural areas of Manitoba. Lygus lineolaris has one generation (the second generation) on oilseed rape, and the eclosion and dispersal of reproductively active first-generation adults were well synchronized with the bud and flower stages of this host plant in southern Manitoba. In 1993, L. borealis had two generations and its seasonal occurrence was similar to that of L. lineolaris.

PREDATORS OF THE TARNISHED PLANT BUG, LYGUS LINEOLARIS (HETEROPTERA: MIRIDAE): LABORATORY EVALUATIONS

1989 ◽  
Vol 24 (2) ◽  
pp. 174-179 ◽  
Author(s):  
Orrey P. Young
Keyword(s):  
Lygus Lineolaris ◽  
Tarnished Plant Bug ◽  
Spider Species ◽  
Late Season ◽  
Arthropod Species ◽  
Heteroptera Pentatomidae ◽  
First Time

Twenty-five arthropod species, field-collected from habitats adjacent to cotton in Mississippi, were evaluated in laboratory arenas for their potential as late-season predators of the tarnished plant bug (TPB), Lygus lineolaris (Palisot). Seventeen species were demonstrated to be predators of the TPB, including 1 orthopteran, 6 hemipterans, and ten spider species. Five species were documented for the first time as predators on TPB: Jalyssus wickami Van Duzee (Heteroptera: Berytidae), Stiretrus anchorago (F.) (Heteroptera: Pentatomidae), Phymata pennsylvanica Hand. (Heteroptera: Phymatidae), Pisaurina mira (Walck.) (Araneae: Pisauridae), and Thiodina puerpera (Hentz) (Araneae: Salticidae).

Variation of Lygus species assemblages in canola agroecosystems in relation to ecoregion and crop stage

2002 ◽  
Vol 134 (1) ◽  
pp. 97-111 ◽  
Author(s):  
H. Cárcamo ◽  
J. Otani ◽  
C. Herle ◽  
M. Dolinski ◽  
L. Dosdall ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Species Composition ◽  
Brassica Rapa ◽  
Relative Abundance ◽  
Species Assemblages ◽  
Lygus Lineolaris ◽  
Western Canada ◽  
Boreal Plains ◽  
The North ◽  
Species Proportions

AbstractPlant bugs in the genus Lygus (Hahn) (Hemiptera: Miridae) are sporadic pests of canola, Brassica napus L. (Brassicaceae) and Brassica rapa L., in western Canada and infestations appear to have become increasingly common and severe in recent years. Surveys conducted from 1998 to 2000 identified a "northern" assemblage in the boreal ecoregion that was dominated by Lygus lineolaris (Palisot de Beauvois), with minor representation of Lygus borealis (Kelton), Lygus elisus (Van Duzee), and Lygus keltoni (Schwartz). A "southern" assemblage in the grassland ecoregions was dominated by L. keltoni, with a substantial abundance of L. elisus and L. borealis and with few L. lineolaris in the driest areas. The assemblage from the parkland ecoregion was variable but with few L. elisus. The boreal plains and parkland ecoregions of Alberta had the most serious and persistent infestations of Lygus spp. Relative species composition of the Lygus assemblage at the bolting stage was not related to the overall abundance of these bugs at the early pod stage. Lygus species assemblages were similar in terms of composition and relative abundance at the bolting and early pod stages of canola. A shift in species proportions in favour of L. lineolaris in the north and L. keltoni in the south and a decrease of L. elisus has taken place relative to studies conducted in the 1980's.

scholarly journals Cambios en composición y abundancia de califóridos de interés forense en Bogotá

2014 ◽  
Vol 20 (1) ◽  
pp. 17 ◽  
Author(s):  
Misael López-Cepeda ◽  
Giovanny Fagua
Keyword(s):  
Species Composition ◽  
Rainy Season ◽  
Dry Season ◽  
Lucilia Sericata ◽  
Calliphora Vicina ◽  
Post Mortem ◽  
Trapping Method ◽  
Sweep Net

Calliphorids are the first arthropods to colonize cadavers, their composition and abundance vary according to location. They are used to estimate post-mortem intervals and surmise the relocation of corpses; making the identification of these local variations are key in detecting the relocation of a body. We assessed these blowfly variations in 11 sites in Bogotá. A pre-sampling (dry season) was conducted to select a trapping method and sampling sites; the formal sampling (rainy season) was conducted using a directed sweep net. We identified the following species: Lucilia sericata, Roraimomusca roraima, Compsomyiops verena, Calliphora nigribasis, Calliphora vicina and Sarconesiopsis magellanica </em>and compared their richness, diversity, dominance and composition for each site. The highest richness was found in Chico-Lago (Chico) while the lowest was Alcazares (Barrios Unidos). Bolivia (Engativá) was the most diverse and 20 de Julio (San Cristobal) the least; dominance was higher in 20 de Julio and lower in Apogeo (Bosa). Species’ composition and abundance varied between sites; this may be used as evidence to support cases in Bogotá in which cadavers have been relocated.

DEVELOPMENT OF ADULT AND NYMPHAL POPULATIONS OF LYGUS LINEOLARIS (PALISOT DE BEAUVOIS), L. ELISUS VAN DUZEE, AND L. BOREALIS (KELTON) (HETEROPTERA: MIRIDAE) IN RELATION TO SEEDING DATE AND STAGE OF PLANT DEVELOPMENT ON CANOLA (BRASSICACEAE) IN SOUTHERN MANITOBA

1997 ◽  
Vol 129 (4) ◽  
pp. 777-787 ◽  
Author(s):  
J.H.M. Leferink ◽  
G.H. Gerber
Keyword(s):  
Plant Development ◽  
Dominant Species ◽  
First Generation ◽  
Second Generation ◽  
Lygus Lineolaris ◽  
Flowering Stage ◽  
Development Stages ◽  
Seeding Date ◽  
Pod Development ◽  
Field Plots

AbstractThe development of adult and nymphal populations of Lygus lineolaris (Palisot de Beauvois), L. elisus Van Duzee, and L. borealis (Kelton) was studied in relation to seeding date and stage of plant development in four seedings of canola (cv. Westar) in field plots at Glenlea, Manitoba, in 1988 and 1989. Lygus lineolaris was the dominant species in all seedings and in both years. Colonizing adults (first-generation adults) of the three Lygus spp. first invaded the plots at about the same time from the late rosette to the early flowering stages of plant development, and Lygus adult numbers reached maxima during flowering in all seedings. The stage of plant development, and not seeding date, was important in attracting colonizing adults of Lygus to canola. Second-generation nymphs first appeared at the flowering stage of canola. All nymphal instars reached maxima and median abundances during the late flowering and pod development stages in all seedings. Second-generation adults were present from early to late pod development stages. Median abundances of second-generation adults of L. lineolaris, L. elisus, and L. borealis usually were reached at the same plant growth stage in each seeding.

SUMMER DIAPAUSE IN PHYLLONORYCTER BLANCARDELLA (FABR.) (LEPIDOPTERA: GRACILLARIIDAE) IN ONTARIO

1986 ◽  
Vol 118 (1) ◽  
pp. 17-28 ◽  
Author(s):  
J.E. Laing ◽  
J.M. Heraty ◽  
J.E. Corrigan
Keyword(s):  
North America ◽  
First Generation ◽  
Second Generation ◽  
Eastern North America ◽  
Flight Period ◽  
Life Stages ◽  
Leaf Miners ◽  
Summer Generation ◽  
Summer Diapause ◽  
Phyllonorycter Blancardella

AbstractThe life stages of Phyllonorycter blancardella (Fabr.) were monitored in an orchard at Guelph, Ontario in 1981 and 1982 and the results showed discrepancies with the previous concept of a trivoltine species occurring throughout its range in eastern North America. Sleeve cages were used to monitor the development of the second, mid-summer generation of leaf miners in a low-maintenance orchard at Guelph in 1982 and 1984 and 2 commercial orchards at Simcoe, Ontario in 1984. The flight period of the first-generation adults occurred over approximately a 6-week period. From eggs laid early in the flight period, a large proportion of the larvae developed quickly and emerged to give a second-generation adult flight. As the flight period continued, there was an increase in the number of progeny whose development was delayed in the early instars. These larvae did not pupate until late fall and overwintered as pupae. Of the second-generation larvae, about 70–90% at Guelph and 35% at Simcoe had a delayed development (summer diapause) and formed a large proportion of the overwintering population.

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