Decreased capture of natural enemies of pests in light traps with light-emitting diode technology

2018 ◽  
Vol 173 (3) ◽  
pp. 251-260 ◽  
Author(s):  
Lei Bian ◽  
Xiao-Ming Cai ◽  
Zong-Xiu Luo ◽  
Zhao-Qun Li ◽  
Zong-Mao Chen
Keyword(s):  
Natural Enemies ◽  
Light Emitting Diode ◽  
Light Traps ◽  
Light Emitting

scholarly journals Response of phlebotomine sand flies to light-emitting diode-modified light traps in southern Egypt

2007 ◽  
Vol 32 (2) ◽  
pp. 302 ◽  
Author(s):  
D.F. Hoel ◽  
J.F. Butler ◽  
E. Y. Fawaz ◽  
N. Watany ◽  
S.S. El-Hossary ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Sand Flies ◽  
Light Traps ◽  
Phlebotomine Sand Flies ◽  
Light Emitting

Monitoring and potential control of sea lice using an LED-based light trap

2009 ◽  
Vol 66 (8) ◽  
pp. 1371-1382 ◽  
Author(s):  
Iñigo Novales Flamarique ◽  
Christina Gulbransen ◽  
Moira Galbraith ◽  
Dario Stucchi
Keyword(s):  
Oncorhynchus Tshawytscha ◽  
Light Emitting Diode ◽  
Light Trap ◽  
Sea Lice ◽  
Light Traps ◽  
Light Emitting ◽  
Farmed Salmon ◽  
Potential Control ◽  
Larval Stages ◽  
Salmon Lice

Sea lice are ectoparasitic copepods that threaten salmon farming aquaculture and the viability of wild salmon populations. To control infestations on farmed salmon, several chemotherapeutants have been developed, but these are invasive (often causing fish stress and loss in production), costly, may induce parasite resistance over time, and their impact on the environment is a major social concern. Here, we show that a light-emitting diode (LED)-based light trap can be used to monitor sea lice presence on fish and in the water. The performance of the light trap was tested in experimental tanks and in the ocean. Plankton net tows were also performed to compare catches with those from light traps. The light trap caught ~70% of salmon lice larval stages loaded onto a tank and ~24% of the adults. It also acted as a delousing agent by removing ~8% of adult salmon lice infective on Chinook salmon ( Oncorhynchus tshawytscha ) smolts in tank experiments. In the ocean, the light trap caught 21 sea lice (10 Lepeophtheirus salmonis and 11 Caligus clemensi ), comprising free-swimming and attached stages, while plankton net tows failed to capture any. We conclude that light traps constitute an effective, noninvasive, environmentally friendly method to monitor sea lice.

scholarly journals Flight to Light Response of Red Pumpkin Beetle (Aulacophora africana Weise) to Differently Coloured Light-emitting Diode and Incandescent Bulb Lights

2019 ◽  
Vol 7 (1) ◽  
pp. 64-69
Author(s):  
Chukwu Alexander Timothy ◽  
Nuhu Samiala ◽  
Emmanuel Okrikata
Keyword(s):  
Light Emitting Diode ◽  
Management Strategies ◽  
Light Response ◽  
Light Traps ◽  
Light Emitting ◽  
Incandescent Bulb ◽  
Randomized Design ◽  
Ordinary Light ◽  
The Difference ◽  
White Colour

Red pumpkin beetle (Aulacophora africana Weise) is an important defoliator and vector of pathogens to its numerous crop hosts. Control had largely been by synthetic insecticides with their attendant consequences on man and the environment thus necessitating scientific studies on environmental-friendly management strategies. The experiment was conducted in the Research Farm of Federal University Wukari in the month of May 2019 with the aim of evaluating the attractiveness of A. africana to Light-emitting diode (LED) and Incandescent Light bulb colours. Five colours (red, yellow, green, blue and white) were used for the study. Each colour light was properly projected on 2 metre vertical screen (made of white polyethene) placed one meter above the ground. A setup without bulb served as the control. The light traps were arranged in a completely randomized design (CRD) in 6 replicates and ran simultaneously for six hours (1800 to 2400hrs). The pumpkin beetles attracted were collected in tubs containing soapy water. A. africana collected were counted and recorded according to bulb type and colour. Samples were identified at the Insect Museum of Ahmadu Bello University, Zaria. Among the Incandescent bulbs, White colour was most attractive to A. africana (4.30±0.38) while red attracted the least (0.71±0.01). Among LED bulbs, Blue was most attractive (3.99±1.01) while Red also attracted the least (0.78±0.03). Overall, LED attracted more pumpkin beetles than Incandescent bulb even though Student Newman Keul’s test indicates that the difference between them was due to random variation (p = 0.16). Correlation and regression analyses indicated increase in insect attraction with increased light intensity. The results, therefore, suggest that white Incandescent or blue LED bulb colours can be incorporated into insecticidal light traps to suppress their population/attract them away from host plants or fixed into ordinary light traps to harvest the insect for scientific studies.

scholarly journals Efficient Harvesting of Safe Edible Grasshoppers: Evaluation of Modified Drums and Light-Emitting Diode Bulbs for Harvesting Ruspolia differens (Orthoptera: Tettigoniidae) in Uganda

2021 ◽  
Vol 114 (2) ◽  
pp. 676-683 ◽  
Author(s):  
F Sengendo ◽  
S Subramanian ◽  
M Chemurot ◽  
C M Tanga ◽  
J P Egonyu
Keyword(s):  
Energy Use ◽  
Light Emitting Diode ◽  
Waste Cooking Oil ◽  
Hazardous Substances ◽  
Light Traps ◽  
African Countries ◽  
Light Emitting ◽  
Current Collection ◽  
Severe Burns ◽  
Wire Meshes

Abstract Ruspolia differens (Serville) (Orthoptera: Tettigoniidae) is a delicacy in many African countries. It is commonly mass-harvested from the wild using light traps consisting of energy-intensive mercury bulbs which pollute the environment when poorly disposed. The catch is collected using open-ended drums which are inefficient in retaining the insects. The drums also collect nontarget insects including those that produce toxic chemicals (such as pederin) that cause severe burns to human skin. To prevent escape of trapped R. differens, trappers apply potentially hazardous substances like waste cooking oil on the walls of drums. Here, we modified the collection drum by fitting a funnel to retain R. differens; and partitioned it into three compartments with wire meshes of variable sizes to filter nontarget insects. Additionally, we replaced mercury bulbs with light-emitting diode (LED) bulbs which are energy-efficient. We evaluated the performance of the modified R. differens trap (modified drums and LED bulbs) compared to the current collection drums and mercury bulbs. The catch of R. differens in the modified drums was comparable to that of current drums. Nontarget insects were significantly filtered from the catch collected in modified drums compared to the current drums. Further, LED bulbs of 400 W trapped a comparable quantity of R. differens as 400 W mercury bulbs, but with less than half the consumption of electricity compared to the mercury bulbs. We concluded that modified R. differens light traps have better energy-use efficiency and ensure safety to collectors, processors, and consumers.

Light-Emitting Diode Light Traps as an Improved Method for Control of Musca domestica (Diptera: Muscidae)

2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Robert W. Mertz ◽  
Lynn M. Johnson ◽  
Hoonsik Eom ◽  
Jong Man Kim ◽  
Jeffrey G. Scott
Keyword(s):  
Musca Domestica ◽  
Light Emitting Diode ◽  
Light Traps ◽  
Improved Method ◽  
Light Emitting

Synchronization of Chaotic Quantum Dot Light Emitting Diodes under Optical Feedback Effect

2020 ◽  
pp. 144-148
Keyword(s):  
Quantum Dot ◽  
Delay Time ◽  
Chaos Synchronization ◽  
Optical Feedback ◽  
Light Emitting Diode ◽  
Feedback Effect ◽  
Complete Synchronization ◽  
Light Emitting ◽  
Coupling Methods ◽  
Coupling Parameters

Chaos synchronization of delayed quantum dot light emitting diode has been studied theortetically which are coupled via the unidirectional and bidirectional. at synchronization of chaotic, The dynamics is identical with delayed optical feedback for those coupling methods. Depending on the coupling parameters and delay time the system exhibits complete synchronization, . Under proper conditions, the receiver quantum dot light emitting diode can be satisfactorily synchronized with the transmitter quantum dot light emitting diode due to the optical feedback effect.

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