Models for the practitioner: Predicting the efficient biocontrol of Tuta absoluta under different management scenarios DOI Creative Commons
Jérémy Gonthier, Janique Koller, Judit Arnó

и другие.

Crop Protection, Год журнала: 2023, Номер 172, С. 106316 - 106316

Опубликована: Июнь 12, 2023

Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the most destructive pests solanaceous crops. One possible biological control strategy augmentative release parasitoids. However, parasitoid intervention efficacy highly sensitive to timing and intensity. Virus-based biopesticides are additional means since they selective can be combined with natural enemies. We developed a stage-structured population model, validated results from semi-field experiment, investigate predict dynamics pest T. its parasitoids, Necremnus tutae Ribes & Bernardo (Hymenoptera: Eulophidae). The aim study was assess best parameters N. in four different management scenarios: without any other method, biopesticide (PhopGV, Baculoviridae), presence parasitoid, when combining biopesticide. Moreover, each scenario, two growing seasons lengths were compared. To achieve same level, 3–45% fewer parasitoids necessary long season than shorter one. Biopesticide applications reduce number required by 66% 78%, whereas reduces it 11% 17% for short seasons, respectively. On average, application, delayed month remains efficient. These findings highlight importance mathematical models applied drawing precise predictions crucial efficient control.

Язык: Английский

Lobularia maritima as a nutrient-rich floral food source for two parasitoid wasps of Tuta absoluta DOI
Pablo Urbaneja‐Bernat, Jordi Riudavets, Carmen Denis

и другие.

Entomologia Generalis, Год журнала: 2024, Номер 44(2), С. 339 - 346

Опубликована: Март 21, 2024

Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the main pests threatening tomato production worldwide.Since its detection in Mediterranean basin, it has been target research aiming to reduce damage crops.Current conservation biological control approaches focus on polyphagous predators Macrolophus pygmaeus (Rambur) and Nesidiocoris tenuis (Reuter) (Hemiptera: Miridae), which are very effective pest's eggs but have little effect T. larvae.Surveys conducted northeast Spain concluded that eulophid Necremnus tutae Ribes & Bernardo braconid Dolichogenidea gelechiidivoris (Marsh) most abundant larval parasitoids.It well known adding floral resources near crops can provide high-quality food for natural enemies thus enhance control.Previous studies showed Lobularia maritima L. (Brassicaceae) flowers a reliable source N. tutae.The present study examines whether availability positively influences fitness D. by parasitoids.To this aspect, performance both wasps was evaluated simple complex arena at high low densities absoluta, respectively.Our results demonstrate nectar nutrient-rich with profound implications tomatoes.

Язык: Английский

Процитировано

2

Models for the practitioner: Predicting the efficient biocontrol of Tuta absoluta under different management scenarios DOI Creative Commons
Jérémy Gonthier, Janique Koller, Judit Arnó

и другие.

Crop Protection, Год журнала: 2023, Номер 172, С. 106316 - 106316

Опубликована: Июнь 12, 2023

Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the most destructive pests solanaceous crops. One possible biological control strategy augmentative release parasitoids. However, parasitoid intervention efficacy highly sensitive to timing and intensity. Virus-based biopesticides are additional means since they selective can be combined with natural enemies. We developed a stage-structured population model, validated results from semi-field experiment, investigate predict dynamics pest T. its parasitoids, Necremnus tutae Ribes & Bernardo (Hymenoptera: Eulophidae). The aim study was assess best parameters N. in four different management scenarios: without any other method, biopesticide (PhopGV, Baculoviridae), presence parasitoid, when combining biopesticide. Moreover, each scenario, two growing seasons lengths were compared. To achieve same level, 3–45% fewer parasitoids necessary long season than shorter one. Biopesticide applications reduce number required by 66% 78%, whereas reduces it 11% 17% for short seasons, respectively. On average, application, delayed month remains efficient. These findings highlight importance mathematical models applied drawing precise predictions crucial efficient control.

Язык: Английский

Процитировано

4