scholarly journals Light trap catches of blackflies in southern part of Kyushu, Japan

1978 ◽  
Vol 29 (2) ◽  
pp. 107-115
Author(s):  
Hiroyuki TAKAOKA ◽  
Sinichi NODA ◽  
Susumu YAMAMOTO
Keyword(s):  
Light Trap ◽  
Trap Catches

scholarly journals Bluetongue virus in a Nigerian dairy cattle herd: 1. Serological studies and correlation of virus activity to vector population

1983 ◽  
Vol 90 (2) ◽  
pp. 177-193 ◽  
Author(s):  
K. A. J. Herniman ◽  
J. P. T. Boorman ◽  
W. P. Taylor
Keyword(s):  
Bluetongue Virus ◽  
Light Trap ◽  
Survival Rates ◽  
Virus Transmission ◽  
Neutralizing Antibody ◽  
Decay Rates ◽  
Vector Population ◽  
Virus Activity ◽  
Serological Studies ◽  
Trap Catches

SUMMARYNewborn calves were bled at monthly intervals and examined for serum antibodies to bluetongue virus (BTV). Maternal immunity persisted for 3 months and it was possible to calculate decay rates for virus neutralizing antibody. Calves were subclinically infected with BTV within a few months of becoming susceptible and neutralization tests were used to deduce the serotype responsible. A profile of virus activity was built up over a 12 month period. Frequent light trap catches were used to examine the population dynamics of suspected Culicoides vector species. Two species, imicola and schultzei were present throughout the wet and dry seasons and survival rates were sufficiently long to account for virus transmission at any time of the year.

Southern Potato Wireworms: Light-Trap Catches of Adults in an Isolated Agricultural Area123

1973 ◽  
Vol 66 (3) ◽  
pp. 757-760 ◽  
Author(s):  
Augustine Day ◽  
J. M. Stanley ◽  
J. C. Webb ◽  
J. G. Hartsock
Keyword(s):  
Light Trap ◽  
Trap Catches

Effects of lunar phase on light trap catches of the Malayan black rice bug, Scotinophara coarctata (Heteroptera: Pentatomidae)

1993 ◽  
Vol 83 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Kiyomitsu Ito ◽  
Hachiro Sugiyama ◽  
Nik Mohd. Noor b. Nik Salleh ◽  
Chang Poon Min
Keyword(s):  
Full Moon ◽  
Light Trap ◽  
Physiological Status ◽  
Growth Stages ◽  
Lunar Phase ◽  
Starvation Period ◽  
Rice Bug ◽  
New Moon ◽  
Fat Bodies ◽  
Trap Catches

AbstractDaily light trap catches of Scotinophara coarctata (Thunberg) were analysed from mid-September 1986 to December 1990 and the physiological status of the trapped adults was examined. The catch size fluctuated synchronously with the lunar phase; large catches occurred around the full moon period and very few adults were trapped around the new moon period. Seasonally, the catches were large from January to March and from July to September, while they were small from May to June and October to November. The seasonal fluctuations of the catches seemed to be related to the growth stages of the rice plants on which the adults multiplied. The sex ratio of trapped adults was biased toward males, unlike that of the cage-reared insects which was 1:1. Most of the trapped females showed undeveloped ovaries and some of these females appeared to have oviposited previously. Light-attracted adults showed a considerable tolerance to starvation and survived for 20–30 days when they were given water, but for only two days in the absence of water. When the light-attracted females were supplied with food, their ovaries developed rapidly and females with mature eggs were produced after nine days. When the starvation period was prolonged, the ovaries remained immature and the fat bodies reduced in size. The nocturnal take-off of the adults was not triggered simply by the full moon illumination. Adult eclosion did not synchronize with the moon cycle.

Influence of moonlight on light-trap catches of the malaria vector Anopheles culicifacies (Diptera: Culicidae) in central India

1996 ◽  
Vol 86 (4) ◽  
pp. 475-479 ◽  
Author(s):  
Neeru Singh A.K. Mishra ◽  
C.F. Curtis ◽  
V.P. Sharma
Keyword(s):  
Longitudinal Study ◽  
Malaria Vector ◽  
Light Trap ◽  
Central India ◽  
Moon Phase ◽  
Total Catch ◽  
Anopheles Culicifacies ◽  
Tribal People ◽  
Parity Rate ◽  
Trap Catches

AbstractA significant effect of moon phase on light-trap catches of Anopheles species was observed during a longitudinal study carried out in a forested belt of Madhya Pradesh, India, inhabited by tribal people. However, moon phase does not seem to have any effect on the proportion of adult Anopheles culicifacies Giles in the total catch, or the parity rate in this species, which is the vector responsible for perennial transmission of malaria in the area.

Light-trap catches of African armyworm moths, Spodoptera exempta (Walker) (Lepidoptera: Noctuidae), in relation to rain and wind

1983 ◽  
Vol 73 (2) ◽  
pp. 315-319 ◽  
Author(s):  
M. R. Tucker
Keyword(s):  
East Africa ◽  
Light Trap ◽  
Spodoptera Exempta ◽  
Trap Catch ◽  
Early Season ◽  
African Armyworm ◽  
Light Wind ◽  
Trap Catches ◽  
Lepidoptera Noctuidae ◽  
Very High

AbstractThe association between weather and light-trap catches of Spodoptera exempta (Wlk.) was examined for four traps in East Africa, using whole–night catches and several years' data. Large increases in trap catch were found to be (1) significantly associated with rain at all four traps for the period December–March, but not for later in the season; (2) significantly associated with light wind periods at Muguga for December–May, but not later in the year, and not at Nakuru, due to the very high overall frequency of light winds there; and (3) not significantly associated with windshifts at either Muguga or Nakuru. These results suggest that high densities of flying moths, which may give rise to caterpillar outbreaks early in the year, often occur where the rather infrequent early–season rains fall.

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