scholarly journals A cheap electronic sensor automated trap for monitoring the flight activity period of moths

2021 ◽  
Vol 118 ◽  
pp. 315-321
Author(s):  
Alicia PÉREZ-APARICIO ◽  
Jordi LLORENS ◽  
Joan Ramon ROSELL-POLO ◽  
Jordi MARTÍ ◽  
César GEMENO
Keyword(s):  
Flight Activity ◽  
Activity Period ◽  
Electronic Sensor

Factors Influencing Flight Activity of Colonies of the Stingless Bee Trigona-Carbonaria (Hymenoptera, Apidae)

1993 ◽  
Vol 41 (4) ◽  
pp. 343 ◽  
Author(s):  
TA Heard ◽  
JK Hendrikz
Keyword(s):  
Daily Activity ◽  
Daily Variation ◽  
Stingless Bee ◽  
Flight Activity ◽  
Activity Period ◽  
Diel Pattern ◽  
Experimental Site ◽  
Factors Influencing ◽  
The Hours ◽  
Trigona Carbonaria

Temporal patterns of flight activity and influence of climatic variables on activity of colonies of the potentially useful crop pollinator, Trigona carbonaria Smith, were investigated. Colonies of T. carbonaria were active all the year at the experimental site but the daily activity period was longer in the warmer months. Intensity of daily flight activity was greatest in September and least in May. Temperature and radiation were the most important variables affecting flight activity. They impose thresholds on activity, with flight occurring only at temperatures greater than 18-degrees-C and radiation greater than 15 W m-2. Temperature and radiation also influence the intensity of activity above the thresholds. Relative humidity, vapour pressure, cloud cover and wind speed had no significant effect. A variable measuring the hours from daily peak of activity was significantly correlated with flight activity, indicating an intrinsic diel pattern of activity. Daily variation in flight activity, representing the influence of unmeasured variables, was also significant.

The Temporal Pattern of Mosquito Flight Activity

Behaviour ◽  
1980 ◽  
Vol 72 (1-2) ◽  
pp. 1-25 ◽  
Author(s):  
Eric L. Peterson
Keyword(s):  
Culex Pipiens ◽  
Recording System ◽  
Flight Activity ◽  
Activity Period ◽  
Constant Darkness ◽  
Real Thing ◽  
Culex Pipiens Fatigans ◽  
Endogenous Circadian Rhythm ◽  
Basic Features ◽  
Interval Lengths

Abstract48 Mosquitoes (Culex pipiens fatigans) were isolated in constant darkness and their flight activity monitored with an automatic acoustical recording system. Three basic features were recognized: (I) there was a strong endogenous circadian rhythm with activity in the subjective evening and morning (Fig. 9) ; (2) flights came in bouts with the bouts more closely spaced in the evening activity period (Fig. 10) ; (3) the distributions of flight and interval lengths suggested that the onset and cessation of flight were relatively simple stochastic processes (Figs. 5, 6, 7). A stochastic model, requiring a few simple assumptions, was proposed to accommodate these features. Computer simulation of mosquito activity, based upon the model, generated patterns which looked like the real thing (Fig. 15).

Nocturnal behaviour of adults of Heliothis armigera (Hübner) (Lepidoptera: Noctuidae) in the Sudan Gezira and pest control implications

1987 ◽  
Vol 77 (3) ◽  
pp. 541-554 ◽  
Author(s):  
Clive P. Topper
Keyword(s):  
Fat Body ◽  
Adult Life ◽  
Heliothis Armigera ◽  
Egg Laying ◽  
Flight Activity ◽  
Adult Survival ◽  
Activity Period ◽  
Sugar Solution ◽  
Adult Feeding ◽  
Sudan Gezira

AbstractField and cage observations were made on Heliothis armigera (Hübner) in the Sudan Gezira to quantify nocturnal patterns of moth emergence, copulation and oviposition and the ages at which copulation and egg-laying occur. The flight activity pattern of males, virgins and inseminated females was assessed for crops with scarce or abundant sources of honeydew or nectar. A pronounced redistribution of moths between crops during the peak flight activity period (18.15-19.30 h) was demonstrated and measured, with the net exchange being approximately balanced. The direction of this movement was dependent upon the attractiveness of crops for feeding or oviposition. Male and female moths developing from larvae reared on groundnuts had significantly shorter lifespans when fed only water and less fat-body at emergence than moths developing from larvae reared on sorghum. When offered sugar solution, lifespans were significantly greater and differences in the lifespan of moths from groundnuts or sorghum were no longer evident. Adult feeding appears to compensate for any deficiencies associated with a larval diet of groundnut. Feeding was important for adult survival; there was a strong attraction of moths to crops with plentiful honeydew or nectar. A descriptive behavioural model is presented for the first half of adult life, until peak oviposition, and the uses of this model for pest management are discussed.

The Excavation of a Settlement of the Later Bronze Age and Iron Age at Myrehead, Falkirk District

1983 ◽  
Vol 10 (1) ◽  
pp. 41-71 ◽  
Author(s):  
G J Barclay
Keyword(s):  
Bronze Age ◽  
Iron Age ◽  
Farming System ◽  
Activity Period ◽  
Limited Evidence ◽  
Ring Groove ◽  
Domestic Activity ◽  
First Millennium ◽  
First Millennium Bc ◽  
Actual Settlement

SUMMARY Myrehead has revealed the eroded remnants of activity from the Beaker period (Period A) onwards, with actual settlement evinced only from about the early first millennium be. The three houses and the cooking pits of Period B may have been constructed and used sequentially. This open settlement was probably replaced during the mid first millennium bc, possibly without a break, by a palisaded enclosure (Period C), which may have contained a ring-groove house and a four-post structure. Continued domestic activity (Period D) was suggested by a single pit outside the enclosure, dated to the late first millennium bc/early first millennium ad. The limited evidence of the economy of the settlements suggests a mixed farming system.

Crop infestation by aphids is related to flight activity detected with 75 metre high suction traps

2004 ◽  
Vol 57 ◽  
pp. 227-232 ◽  
Author(s):  
D.A.J. Teulon ◽  
M.A.W. Stufkens ◽  
J.D. Fletcher
Keyword(s):  
Positive Relationship ◽  
Rhopalosiphum Padi ◽  
Flight Activity ◽  
Aphid Infestation ◽  
Potato Aphid ◽  
Suction Traps ◽  
Suction Trap ◽  
Trap Catches ◽  
The Relationship ◽  
High Suction

The flight activity of aphid pests of wheat potato lettuce and squash is currently monitored in New Zealand using 75 m suction traps However there has been little research comparing aphid suction trap catches with crop infestation levels The relationship between the average number of aphids (Rhopalosiphum padi) sampled from wheat plants and the average number of aphids caught in weekly 75 m suction trap samples was examined A significant positive relationship indicated that numbers of aphids caught in suction traps reflected the numbers of aphids infesting wheat fields In another experiment potato aphid flights (mostly Myzus persicae) caught in a 75 m suction trap were compared with a nearby windvane trap Aphid numbers in both traps reflected similar trends However the suction trap caught approximately 10 times more aphids than the windvane trap Thus 75 m suction traps provide a useful tool for assessing aphid infestation levels in crops

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