scholarly journals Effects of shade of yellow sticky trap on trap catches of adult sweetpotato whitefly, Bemisia tabaci (Gennadius)

2008 ◽  
Vol 50 ◽  
pp. 179-180
Author(s):  
Tomomi Kubota ◽  
Yoshitugu Nasu ◽  
Manabu Shibao
Keyword(s):  
Bemisia Tabaci ◽  
Sticky Trap ◽  
Sweetpotato Whitefly ◽  
Yellow Sticky Trap ◽  
Trap Catches

scholarly journals Determination of seasonal activity of the sweetpotato whitefly (Homoptera: Aleyrodidae) and leafhoppers (Homoptera: Cicadellidae) by plastic cup traps on the Çukurova Plain, Turkey.

2010 ◽  
Vol 41 (No. 1) ◽  
pp. 8-13 ◽  
Author(s):  
K. Karut ◽  
C. Chu C ◽  
T.J. Henneberry ◽  
C. Kazak
Keyword(s):  
Bemisia Tabaci ◽  
Seasonal Activity ◽  
Sweetpotato Whitefly ◽  
Daily Minimum ◽  
Trap Catches

The flight activities of adult sweetpotato whitefly, Bemisia tabaci, and leafhoppers were monitored by plastic cup traps at Boğalı, Taşçı, Hacıali, Doğankent and Balcalı in the Çukurova Plain, Turkey, in 2001 and 2003. Activity of B. tabaci, expressed as numbers of adults caught in traps, was low from May to early July in both years. Numbers of B. tabaci caught at Tasçı were higher than at Boğalı from 10 July and 21 August in 2001. Its numbers were also higher at Doğankent than at Hacıali and Balcalı during August of 2003. The numbers of leafhopper adults caught fluctuated greatly in both years. Numbers remained low until late June, followed by gradual increases in July and August at Boğalı and Taşçı in 2001. In contrast, numbers of adults caught were higher at Hacıali, Doğankent and Balcalı from May through July in 2003, followed by lower catches during the remainder of the season. Daily minimum temperatures in July and August were positively correlated with higher trap catches of both B. tabaci and leafhoppers.

DIURNAL PATTERNS IN YELLOW TRAP CATCH OF PEAR PSYLLA (HOMOPTERA: PSYLLIDAE): DIFFERENCES BETWEEN SEXES AND MORPHOTYPES

1993 ◽  
Vol 125 (4) ◽  
pp. 761-767 ◽  
Author(s):  
David R. Horton
Keyword(s):  
Sex Ratio ◽  
Life Stage ◽  
Sticky Trap ◽  
Trap Catch ◽  
Male Bias ◽  
Diurnal Patterns ◽  
Pear Psylla ◽  
Female Bias ◽  
Yellow Sticky Trap ◽  
Trap Catches

AbstractDiumal patterns in yellow sticky trap catch of pear psylla, Cacopsylla pyricola Foerster, are described for the spring (reproductive) winterform generation, summerforms, and the fall (diapausing/dispersing) winterform generation. For each life stage, trap catch of the two sexes is also compared, and sex ratios on sticky traps are contrasted with independent estimates of population sex ratio obtained by beat tray samples. Beat tray estimates of sex ratio showed a slight male bias for both winterform generations (although P = 0.09 for spring winterforms), and a female bias for the summerform samples. Sticky trap catches were significantly male biased for the reproductive generations (i.e. spring winterforms and summerforms). Trap catches of fall winterforms were not different from a 1:1 ratio. The male bias for the reproductive generations may be due to mate-seeking activities of males or to a decrease in activity by egg-laden females. Peak catch for summerforms occurred in the morning, and that of both winter-form generations occurred at midday. There was no evidence that trapping depleted local densities of psylla during a 24-h period.

EVALUATION OF TRAP COLOR AND HEIGHT PLACEMENT FOR MONITORING CIRCULIFER TENELLUS (BAKER) (HOMOPTERA: CICADELLIDAE)

1985 ◽  
Vol 117 (4) ◽  
pp. 505-511 ◽  
Author(s):  
D.E. Meyerdirk ◽  
G.N. Oldfield
Keyword(s):  
Ground Level ◽  
Sticky Trap ◽  
Optimum Location ◽  
Survey Tool ◽  
Beet Leafhopper ◽  
Circulifer Tenellus ◽  
Trap Color ◽  
Yellow Sticky Trap ◽  
Trap Catches ◽  
Opaque Plastic

AbstractThe beet leafhopper, Circulifer tenellus (Baker), was found to be significantly attracted to the color yellow. Yellow, opaque plastic cards coated with a sticky substance were shown to be an effective survey tool for monitoring adult beet leafhopper. Traps with different hues of yellow (wavelengths of 510 and 588 nm) showed no significant differences between trap catches. The commonest flight strata at a host site was at ground level, where significantly higher numbers of adults were trapped than at heights of 0.3, 0.6, 0.9, 1.5, 2.1, and 2.7 m above the ground. The ground level is the optimum location for a yellow sticky trap when monitoring C. tenellus.

scholarly journals Seasonal sex ratio of Bactericera cockerelli in potato and tomato crops in Hawkes Bay and Canterbury

2011 ◽  
Vol 64 ◽  
pp. 293-293 ◽  
Author(s):  
N.M. Taylor ◽  
N. Jorgensen ◽  
N.A. Berry ◽  
R.C. Butler
Keyword(s):  
Sex Ratio ◽  
Sticky Trap ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Management Tools ◽  
Yellow Sticky Trap ◽  
Trap Catches ◽  
Potato Crops ◽  
Increased Activity ◽  
Potential Use

Since its discovery in New Zealand in 2006 the tomato/potato psyllid (TPP) Bactericera cockerelli (Sulc) (Hemiptera Triozidae) has been regarded as a significant pest of solanaceous crops in the horticultural industry To date there is little knowledge of the population dynamics of male and female TPP in the field An understanding of these dynamics will aid in the potential use of traps as pest management tools During the 201011 growing season weekly yellow sticky trap catches were used to assess the malefemale sex ratio of TPP in a total of nine tomato and potato crops in Hawkes Bay and mid Canterbury More male TPP were caught on traps at all nine sites throughout the season Furthermore the TPP malefemale ratio was highest early in the season This malebiased dominance may suggest several things an uneven proportion of males compared with females in the population that male TPP are more attracted to the hue of yellow than females an increased activity by males as a consequence of matesearching behaviour and/or a decrease in activity by egglaying females

Dispersal of the sugar-cane scale Aulacaspis tegalensis (Zhnt.) (Hem., Diaspididae) by air currents

1972 ◽  
Vol 61 (3) ◽  
pp. 547-558 ◽  
Author(s):  
D. J. Greathead
Keyword(s):  
Sugar Cane ◽  
Laboratory Experiments ◽  
Sticky Trap ◽  
Research Station ◽  
High Humidity ◽  
Dispersal Mechanism ◽  
Large Numbers ◽  
Speed Up ◽  
Trap Catches ◽  
Aulacaspis Tegalensis

By means of sticky traps and a suction trap, it was demonstrated on a plot of sugar-cane at Kawanda Research Station, Uganda, that large numbers of crawlers of Aulacaspis tegalensis (Zhnt.) become airborne (up to 10/m3). The numbers increase with wind speed up to about 2·0 m/s and then remain constant, but are depressed by increasing humidity. In laboratory experiments, crawler survival was reduced by high temperatures (30°C) and low humidities (30% r.h.), but some individuals should survive the extreme conditions sometimes experienced if airborne from morning until evening. On hatching, crawlers move upwards and towards the light, but downwards in the dark; movement is inhibited by high humidity. These behaviour responses indicate hat the presence of crawlers in the air is not accidental but a dispersal mechanism. At Arusha Chini, an isolated sugar estate in Tanzania, sticky-trap catches downwind of a windbreak confirmed that airborne dispersal of crawlers is a major source of infestation. It is shown that air currents could have carried crawlers to Arusha Chini from a source on the Kenya coast, 260 km to the east.

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