Biological Control Options for the Golden Twin-Spot Moth, Chrysodeixis chalcites (Esper) (Lepidoptera: Noctuidae) in Banana Crops of the Canary Islands

Pino, Modesto del; Cabello, Tomás; Hernández‐Suárez, Estrella

doi:10.3390/insects13060516

Cited by 2 publications

(1 citation statement)

References 37 publications

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“…This technology can effectively avoid a series of problems caused by chemical control and provide an eco-friendly alternative for the control of pests and diseases [3,4]. Trichogramma is the most widely applicable natural enemy of Lepidoptera pests in the world, and it is widely used in the field of biological control [5]. Research on biological control technology based on the parasitic wasp has become an important part of the development of modern green agriculture in China [6].…”

Section: Introductionmentioning

confidence: 99%

Study on the Design and Experiment of Trichogramma Ball Delivery System Based on Agricultural Drone

Song,

Wang,

Wang

et al. 2023

Drones

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Trichogramma-based biological control technology is of great significance to the development of green agriculture. Agricultural drones have the advantages of low-altitude and high-speed operations and have been well applied and widely recognized in the field of Trichogramma delivery. Drone-based Trichogramma ball delivery not only utilizes the efficiency and flexibility of drones but also enables remote precision control. However, existing delivery devices are relatively rudimentary, leading to reliability and precision issues. It is necessary to develop an efficient and accurate drone delivery device to improve the effect of drone delivery of Trichogramma. In this study, a device consisting of a rotary storage mechanism and a rotating hammer-type delivery mechanism was developed. The delivery port of the delivery device should be set in the airflow outlet area 50 cm below the drone’s body. The storage mechanism is equipped with eight storage tube units with a diameter of Φ38 mm, capable of delivering a total of 56 balls in a single mission. The reliable delivery speed ranges from 2 to 6 m/s, with the remote position of the lever serving as the optimal starting position. The release test results showed that 3 m/s flight speed and 4 m/s delivery speed resulted in a small coefficient of variation for the delivery deviation (29%), making it the best operating parameter set. The performance of the developed UAV-based Trichogramma delivery device meets the requirements of field delivery when the appropriate operating parameters are optimized. This study provides reference for further optimization and design of this delivery device prototype.

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Section: Introductionmentioning

confidence: 99%

Study on the Design and Experiment of Trichogramma Ball Delivery System Based on Agricultural Drone

Song,

Wang,

Wang

et al. 2023

Drones

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Integrated Management of Chrysodeixis chalcites Esper (Lepidoptera: Noctuidae) Based on Trichogramma achaeae Releases in Commercial Banana Crops in the Canary Islands

Fernández¹,

Calvo

2022

Agronomy

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Chrysodeixis chalcites is one of the major pests on banana in the Canary Islands (Spain), where it is widely distributed and causes significant economic losses when larvae feed on developing leaves and fruits. Control of this pest is based on a limited number of pesticides, as growers lack other effective solutions, including biological control. Nevertheless, previous studies have shown some potential against C. chalcites of the egg parasitoid Trichogramma achaeae. We conducted two field trials over two consecutive years in commercial banana crops, comparing the results against C. chalcites of augmentative T. achaeae releases (IPM) and conventional chemical control. In total, 215 and 366 wasps/m2 were released in 2016 and 2017, respectively. Naturally occurring Trichogramma species contributed to C. chalcites control in both treatments, but the maximum number of parasitized eggs in IPM plots nearly tripled and doubled those recorded in chemical control plots in 2016 and 2017. Thus, T. achaeae releases significantly increased the parasitism by more than 10% compared to that observed in chemical control plots, amounting to 65.6 ± 7.7% and 56.7 ± 5.8% in 2016 and 2017, respectively. This was enough to keep the pest at tolerable levels in IPM plots, avoiding the need for pesticide applications, whereas in chemical control plots, repeated applications were needed during the experiment for that. Moreover, there were not significant differences in the abundance of larvae and severity of plant damage (<6% in 2016 and <12% in 2017), even when pest pressure in 2016 was two-fold greater in IPM plots. Fruit damage was also similar between treatments in 2016 (<2%) but was significantly reduced from 5.1 ± 1.5% in chemical control to 4.2 ± 1.4% in IPM in 2017. Overall, this study provides guidelines for the biological control of C. chalcites in banana, based on augmentative releases of T. achaeae, and demonstrates that this method can be effective, constituting an environmentally and sustainable alternative to conventional chemical control for banana growers.

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Biological Control Options for the Golden Twin-Spot Moth, Chrysodeixis chalcites (Esper) (Lepidoptera: Noctuidae) in Banana Crops of the Canary Islands

Cited by 2 publications

References 37 publications

Study on the Design and Experiment of Trichogramma Ball Delivery System Based on Agricultural Drone

Study on the Design and Experiment of Trichogramma Ball Delivery System Based on Agricultural Drone

Integrated Management of Chrysodeixis chalcites Esper (Lepidoptera: Noctuidae) Based on Trichogramma achaeae Releases in Commercial Banana Crops in the Canary Islands

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