Increasing catches of adult moth pests (Lepidoptera: Tortricidae) in pome fruit with low‐intensity <scp>LED</scp> lights added to sex pheromone/kairomone lure‐baited traps

Knight, Alan Lee; Preti, Michele; Basoalto, Esteban; Fuentes‐Contreras, Eduardo

doi:10.1111/jen.13176

Cited by 3 publications

(1 citation statement)

References 97 publications

(160 reference statements)

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“…Light traps capture adults of both sexes, and 'female removal' is often mentioned as the primary objective of LT mt [4,8,9,15,28,32,39,45,52,59,60,89]. The mass trapping of males per se is unlikely to suppress female mating success to a near-zero level because a single male can inseminate several female partners during its lifetime [93][94][95].…”

Section: Sex Ratiomentioning

confidence: 99%

Mass Trapping Lepidopteran Pests with Light Traps, with Focus on Tortricid Forest Pests: What If?

Rhainds

2024

Insects

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The management of Lepidopteran pests with light traps (LTs) is often achieved by luring adults to death at light sources (light trap-based mass trapping, or LTmt). Large-scale LTmt programs against agricultural pests initiated in the late 1920s in the United States were phased out in the 1970s, coinciding with the rise of pheromone-based management research. The interest in LTmt has surged in recent years with the advent of light emitting diodes, solar power sources, and intelligent design. The first step in implementing LTmt is to identify a trapping design that maximizes the capture of target pests and minimizes the capture of non-target beneficial insects—with a cautionary note that high captures in LTs are not equivalent to the feasibility of mass trapping: the ultimate objective of LTmt is to protect crop plants from pest damage, not to trap adults. The captures of egg-carrying females in light traps have a greater impact on the efficiency of LTmt than the captures of males. When LTmt is defined as a harvesting procedure, the biomass of females in LTs may be viewed as the best estimator of the mass trapping yield; biomass proxy has universal application in LTmt as every living organism can be defined on a per weight basis. While research has largely focused on agricultural pests, an attempt is made here to conceptualize LTmt as a pest management strategy in forest ecosystems, using spruce budworm as a case study. The mass trapping of female budworms is impossible to achieve in endemic populations due to the large spatial scale of forest landscapes (implying the deployment of a prohibitively large number of LTs); in addition, ovipositing female budworms do not respond to light sources at a low density of conspecifics. The light-based mass trapping of female budworms may provide a realistic management option for geographically isolated forest stands heavily infested with budworms, as a tool to prevent tree mortality. Somehow unexpectedly, however, one factor obscuring the feasibility of LTmt is as follows: the complex (‘unknowable’) economic valuation of forest stands as opposed to agricultural landscapes.

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Section: Sex Ratiomentioning

confidence: 99%

Mass Trapping Lepidopteran Pests with Light Traps, with Focus on Tortricid Forest Pests: What If?

Rhainds

2024

Insects

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Simultaneous effective monitoring of Grapholita molesta and Cydia pomonella (Lepidoptera: Tortricidae) in traps with a dual sex pheromone/kairomone lure plus a UV‐A light

Knight,

Mujica,

Basoalto

et al. 2024

J Applied Entomology

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Studies of oriental fruit moth (OFM), Grapholita molesta (Busck), and codling moth (CM), Cydia pomonella (L.) (Lepidoptera: Tortricidae), both important pests of pome fruit, evaluated the addition of low‐intensity light‐emitting diode (LED) to delta traps baited with 3 commercial monitoring lures. Studies were conducted in 9 orchards treated with and without sex pheromone mating disruption for one or both species. OFM was monitored with a two‐part pheromone/kairomone lure (OFM Combo Dual), while CM was monitored with either a two‐part kairomone lure (CM Dual 4 K) or a sex pheromone lure (CM PH). Both pests were monitored with or without the addition of three types of a low power LED light with peak intensity at 395 (UV‐A), 458 (blue), and 516 (green) nm. The UV‐A LED was found to be the most effective among the three lights for OFM. Unexpectedly, traps with the OFM Combo Dual lure plus UV‐A LED caught similar numbers of CM as traps baited with the CM Dual 4 K and CM PH lures alone. They also caught other pest species, such as oblique banded leafroller (OBLR), Choristoneura rosaceana (Harris), and peach twig borer (PTB), Anarsia lineatella (Zeller). Interestingly, in different trials the OFM Combo Dual combined with UV‐A LED light caught significantly more OFM and/or CM females compared to the OFM Combo Dual lure without light, opening the perspective for a female‐oriented monitoring and for a “female removal” management approach of these pests. The development of inexpensive, dual‐modality traps adding a light stimulus to a pheromone/kairomone lure may reduce monitoring costs in orchards with multiple moth pests, improving the trapping efficiency.

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Sex pheromone and ultraviolet radiation: interaction of attraction effects for cotton earworm, <i>Helicoverpa armigera</i> (Hbn.) (Lepidoptera, Noctuidae) adults

Frolov,

Kononchuk,

Grushevaya

et al. 2024

Èntomologičeskoe obozrenie

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Although the potential of the use of the semiochemicals (pheromones, allomones, kairomones, and synomones) and the semiophysicals (physical stimuli) to control insect behaviour for plant protection from harmful insects is beyond doubt, the characteristics of the interactions between their attractive properties have been extremely poorly studied. Therefore, despite the fact that the cotton bollworm, Helicoverpa armigera, is one of the most harmful insects on the planet, there is no information in the literature on the effect of a combination of light stimuli and a synthetic sex attractant (SSA) on the behaviour of this species. In July–August 2021–2023, we conducted a study in two locations in Krasnodar Territory of Russia to test attraction of cotton bollworm adults with traps placed on corn sowings and equipped with four baits: (1) ultraviolet light emitting diodes (UV LEDs), (2) SSA, (3) SSA + UV LEDs, and control (4). The results obtained showed significant differences between the baits in capturing moths: not a single adult was captured in the control trap at all; traps with UV LEDs captured about 8%; with SSA, capturing a little more than 30%, and traps that attracted insects with both SPA and UV LEDs captured almost 60% of the total number of moths captured. The small catch of moths to the light is clearly explained by the situation of the traps in rows of tall hybrid corn at a height of 1.5 metres above the ground and no closer than 30 metеrs to the edge of the field. This means that the light, unlike SSA signals, was faded rapidly by the surrounding vegetation. However, a positive aspect of the technique used is the absence of significant numbers of non-target insect species capture in traps. The only exceptions are green grasshoppers, Tettigonia caudata (Ch.) and T. viridissima (L.), in traps with LEDs or other baits. Using two-factor ANOVA of both the original and transformed (x + 0.5)½ capture data, we found a synergy effect in the interaction of SSA and LED signals with respect to attractiveness for pest adults at pa = 0.05 only in one out of the five tests conducted. This result shows that the interaction of the semiochemicals and semiophysicals has rather additive than synergistic nature. Nevertheless, the results of the tests suggest that the combined use of SSA and LED may be a promising means for controlling the behaviour of the pest since retrofitting pheromone traps with UV LEDs can result in an approximately twofold increase in catch rates of the cotton bollworm adults.

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Increasing catches of adult moth pests (Lepidoptera: Tortricidae) in pome fruit with low‐intensity LED lights added to sex pheromone/kairomone lure‐baited traps

Cited by 3 publications

References 97 publications

Mass Trapping Lepidopteran Pests with Light Traps, with Focus on Tortricid Forest Pests: What If?

Mass Trapping Lepidopteran Pests with Light Traps, with Focus on Tortricid Forest Pests: What If?

Simultaneous effective monitoring of Grapholita molesta and Cydia pomonella (Lepidoptera: Tortricidae) in traps with a dual sex pheromone/kairomone lure plus a UV‐A light

Sex pheromone and ultraviolet radiation: interaction of attraction effects for cotton earworm, <i>Helicoverpa armigera</i> (Hbn.) (Lepidoptera, Noctuidae) adults

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