Alexandre Nougadère
LightNews LightNews
alexnouga.bsky.social
Alexandre Nougadère
@alexnouga.bsky.social
19 followers 29 following 0 posts
Scientific Project Manager
EFSA Plant Health Monitoring Team
Posts Replies Media Videos
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
📢New pest survey card: #Anthonomus bisignifer & A. signatus

👉Protect strawberries and other important crops from these pests. Strengthen your surveillance efforts with this resource.

🌱 #PlantHealth #PestSurveyCard #SurveillanceNetwork
Anthonomus bisignifer adult (Source: Pest and Diseases Image Library, Bugwood.org) Strawberry (Fragaria x ananassa Duchesne ex Rozier [chiloensis × virginiana]) cultivation (Source: Ko Ko Maung, Bugwood.org)
August 28, 2025 at 1:21 PM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🌳 Presented at EPPO/COST mtg: EFSA’s support for optimisation of pest surveys for broadleaved trees! Tools like RiPEST & OptiPest help detect pests early, optimise resources & protect forests under climate stress. Smarter surveillance = stronger biosecurity. #EFSA #PlantHealth #OptiPest #OneHealth
September 8, 2025 at 11:35 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
📢 New Pest Survey Card: #AnthonomusQuadrigibbus

This weevil is a pest of #fruit trees including apples, pears, and sour cherries 🍎🍐🍒.

Explore our interactive #StoryMap to learn more about detection strategies:

🔗 link.europa.eu/YgnGVY

🌱 #PlantHealth #PestSurveyCard #SurveillanceNetwork
(A) Egg, (B) larva, and (C) pupa in a saskatoon (Amelanchier alnifolia) fruit and (D) adult of Anthonomus quadrigibbus (Source: EPPO Global Database, courtesy of Joseph Moisan-De Serres, MAPAQ, Canada (A-D)) Examples of natural and human assisted-spread of Anthonomus quadrigibbus (Sources: Howard F. Schwartz, Colorado State University, Bugwood.org (background); EPPO Global Database, courtesy of Joseph Moisan-De Serres, MAPAQ, Canada (A. quadrigibbus adult); Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org (apple fruits).
September 22, 2025 at 7:13 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
📢New Pest Survey Card: non-EU #Choristoneura spp.

This group comprises 10 species with #conifers, #crops and #herbaceous species as host plants 🌲🌳🌿

🔎Explore our interactive #StoryMap: link.europa.eu/R7G4bJ

@canadianbiogenome.bsky.social

@bertonemyia.bsky.social

@sheborg.bsky.social
Symptoms of Choristoneura spp. on host plants. (A) Bud and (B) needle mining and (C) webbing caused by the larvae of C. fumiferana, (D) defoliation caused by the larvae of C. pinus, (E) feeding damage and webbing caused by the larvae of C. parallela, (F) leaf rolled by the larva of C. conflictana (Sources: © USDA Forest Service - Forest Health Protection Intermountain Region - Ogden, UT, USDA Forest Service, Bugwood.org (A, B); © Neil Thompson, University of Maine at Fort Kent, Bugwood.org (C); © Minnesota Department of Natural Resources - FIA , Minnesota Department of Natural Resources, Bugwood.org (D); © Adam Sisson, Iowa State University, Bugwood.org (E); © Steven Katovich, Bugwood.org (F))
September 26, 2025 at 7:49 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
Stay updated on plant pests with our monthly #HorizonScanning Newsletter of July!

🌿 Get information about new pests
🌿 Grow your knowledge on EU #PriorityPests
🌿 Find news about #PestManagement
🔍 Follow tinyurl.com/yvbvvnay

#XylellaFastidiosa #ScirtothripsDorsalis #EuwallaceaFornicatus
The image is the cover of a newsletter titled "Plant Health Newsletter on HORIZON SCANNING July 2025", published by the European Food Safety Authority (EFSA). Visual Elements: At the top left, the EFSA logo is displayed alongside the European Union flag. Beneath them is the text: "EUROPEAN FOOD SAFETY AUTHORITY". The center features a circular photograph of red berries set against a vibrant green background. Below the berries, there is a grid of twelve close-up images, each showing different plant pests or diseases in various stages. At the bottom right, there's a serene image of a tree standing alone in a field, under a clear blue sky. Textual Information: Title: "Plant Health Newsletter on HORIZON SCANNING July 2025" Publisher: "European Food Safety Authority (EFSA)" Reference: "EFSA-Q-2025-00027 doi: 10.2903/sp.efsa.2025.EN-9612" Motto: "Science, safe food, sustainability"
July 31, 2025 at 9:41 AM
Reposted by Alexandre Nougadère
wonderofscience.bsky.social
The view from the International Space Station as an aurora meets the sunrise in space.
August 2, 2025 at 10:44 PM
Reposted by Alexandre Nougadère
efsa.europa.eu
🌿 𝐊𝐞𝐞𝐩𝐢𝐧𝐠 𝐩𝐥𝐚𝐧𝐭 𝐩𝐞𝐬𝐭𝐬 𝐨𝐮𝐭 𝐨𝐟 𝐭𝐡𝐞 𝐄𝐔

We've assessed 47 quarantine pests to support the EU's update of priority pests.

This work will help protect Europe's biodiversity, agriculture & forestry.

europa.eu/!QqPVkr

#PlantHealth #FoodSecurity #pests @efsa-plants.bsky.social
Keeping plant pests out of the EU
Since 2022, EFSA has involved 130 experts to support the European Commission in the revision of the current list of priority pests – quarantine pests that pose the most serious threats to the EU envir...
europa.eu
July 23, 2025 at 9:26 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🦋 Have you seen the EFSA #PestSurveyCard on #Paysandisia #archon?

Understanding its life cycle is crucial for effective pest #surveillance across the EU. This card offers key insights to help protect our ecosystems and agriculture.

🔍 Check details here: europa.eu/!HvPVvw

#SurveillanceNetwork
Paysandisia archon: (A) eggs on palm fibres; (B) dissected palm trunk showing larvae; (C) pupae; (D) pupae in cocoon; (E) pupal exuviae on the outside of the stipe; (F) adult (wingspan 6–11 cm) (Source: courtesy of Tatjana Masten Milek (A–F)) Life cycle of Paysandisia archon (Source: courtesy of Luka Mustapic, created in BioRender.com, https://app.biorender.com/)
July 17, 2025 at 10:25 AM
Reposted by Alexandre Nougadère
theplanetaryguy.bsky.social
See that bright speck?

That's Venus.

Photographed from Saturn.
July 17, 2025 at 11:01 PM
Reposted by Alexandre Nougadère
theplanetaryguy.bsky.social
Open up and lose yourself in the beauty of this new #JWST image of the Cat's Paw Nebula.
July 10, 2025 at 10:08 PM
Reposted by Alexandre Nougadère
theplanetaryguy.bsky.social
Open this photo up and look for the small, white dot just left of centre.

It looks like Venus, shining brightly in the twilight sky.

But it's us.

It's Earth.

From Mars.
November 24, 2024 at 3:19 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🌱 New EFSA Report Released! 🌱

📊 #Candidatus #Liberibacter spp. – Learn about its its potential as a #PriorityPest in EU.

🔍 available here: doi.org/10.2903/sp.e...

#Huanglongbing
@blasarre.bsky.social
@americanbeetles.bsky.social
@ufgeog.bsky.social
@vectorgen.bsky.social
Figure 1: Citrus Huanglongbing disease symptoms, signs and vector. A: Blotchy mottle symptoms on leaves. B: Uniform and even mottling symptoms due to nutrient deficiencies. C: Corking veins and green island symptoms. D: Yellow-shoot symptoms. E: Declining citrus tree with thinning canopy and branch dieback. F: Lopsided fruit. G: Unevenly coloring fruit. H: ACP eggs on flush, adult insect, and nymphs producing waxy tubules pictures by Greg Douhan et al., 2018. An Update on Huanglongbing Disease of Citrus in California. Topics in Subtropics newsletter. Volume 17, Spring 2018 Picture from the EFSA's report
April 14, 2025 at 10:04 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
The EU #PriorityPest , the Japanese beetle (#Popilliajaponica) 🐞🐜 has been detected for the first time in France (Haute-Rhine) expanding NW from Northern Italy and Suisse. This pest, found in 2014 close to Malpensa (Italy), is a serious threat to plants and crops. #InvasiveSpecies #Planthealth
Japanese beetle on a pink flower
July 10, 2025 at 1:12 PM
Reposted by Alexandre Nougadère
natecoevo.nature.com
In this month's issue of Nature Ecology & Evolution, we celebrate 200 years since the birth of Henry Walter Bates, who gave the first scientific account of mimicry in butterflies [thread] 🦋

Editorial: Bates’ many contributions www.nature.com/articles/s41...
Bates’ many contributions - Nature Ecology & Evolution
Henry Walter Bates gave the first known scientific account of mimicry in biological systems. To mark the bicentenary of his birth, we present a collection of content that reflects on his life and lega...
www.nature.com
July 10, 2025 at 3:14 PM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
Don't forget to visit our interactive #Dashboard dedicated to the #HorizonScanning findings about #PlantPests
www.efsa.europa.eu/en/powerbi/p...
last update: yesterday
#Brenneria
#Diplodia
#Gibbsiella
#Gilbertella
#Myzus
#Neopestalotiopsis
#Pantoea
#Phyllosticta
#Phytopythium
#Pospiviroid
July 11, 2025 at 7:22 AM
Reposted by Alexandre Nougadère
botany.one
The distinctive flavour of brassicas comes from their chemical defences that they use to dissuade herbivores. So how come some caterpillars don't merely survive but actually thrive on them? It turns out they have a trick to slip by those defences.

wp.me/pdRZhH-m8Y

#Botany #PlantScience 🧪
A bright green caterpillar with a segmented body is positioned in a C-shape on a green leaf surface. The caterpillar appears smooth and plump, typical of a young larval stage. The leaf shows some minor surface damage or discolouration where the caterpillar is feeding.
June 28, 2025 at 8:01 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
📘 Learn more in the new EFSA Opinion on Berberis thunbergii plants doi.org/10.2903/j.efsa.2025.9496
#PlantHealth #EFSA #Barberry #PestAlert #Phytophthora #BemisiaTabaci #Biosecurity #OrnamentalPlants #ScientificOpinion
June 16, 2025 at 9:02 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🌱 New EFSA Pest Report on
#Spodoptera #frugiperda

👉 doi.org/10.2903/sp.e...

EFSA’s scientific support for ranking candidate #PriorityPests.

📊 EFSA assessed 47 EU quarantine pests, focusing on:
✔️ Lag period
✔️ Expansion rate
✔️ Impact on crops and the environment

#EFSA
#PlantHealth
#ScienceToPolicy
Source: EFSA et al., 2023. Pest survey card on Spodoptera frugiperda. EFSA supporting publication: EN-6911. https://efsa.europa.eu/plants/planthealth/monitoring/surveillance/spodoptera-frugiperda Source: EFSA et al., 2023. Pest survey card on Spodoptera frugiperda. EFSA supporting publication: EN-6911. https://efsa.europa.eu/plants/planthealth/monitoring/surveillance/spodoptera-frugiperda Source: EFSA et al., 2023. Pest survey card on Spodoptera frugiperda. EFSA supporting publication: EN-6911. https://efsa.europa.eu/plants/planthealth/monitoring/surveillance/spodoptera-frugiperda Source: EFSA et al., 2025. Spodoptera frugiperda – Pest Report to support the ranking of EU candidate priority pests. EFSA supporting publication 2025: 22(2):EN-9266. 62 pp. https://doi.org/10.2903/sp.efsa.2025.EN-9266
July 16, 2025 at 9:51 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
#Pathogens that can infect #palmtrees in the EU include #Fusarium oxysporum f. sp. albedinis.

A #PestSurveyCard for this pathogen is available at: europa.eu/!qHJtfH

Check out the document to explore the recommended detection and identification procedure.

🌱 #PlantHealth #SurveillanceNetwork
July 15, 2025 at 3:12 PM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🌱 New EFSA Pest Report!

#Keiferia #lycopersicella:

👉 doi.org/10.2903/sp.e...

EFSA’s scientific support for ranking candidate #PriorityPests.

📊 EFSA assessed 47 EU quarantine pests, focusing on:
✔️ Lag period
✔️ Expansion rate
✔️ Impact on crops and environment

#EFSA
#PlantHealth
#ScienceToPolicy
Source: EFSA et al., 2025. Keiferia lycopersicella – Pest Report to support the ranking of EU candidate priority pests. EFSA supporting publication 2025: 22(5):EN-9451. 42 pp. https://doi.org/10.2903/sp.efsa.2025.EN-9451
July 15, 2025 at 3:37 PM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🌱 New EFSA Pest Report!

📄 #Phymatotrichopsis #omnivora

👉 doi.org/10.2903/sp.e...

EFSA’s scientific support for ranking candidate #PriorityPests.

📊 EFSA assessed 47 pests, focusing on:
✔️ Lag period
✔️ Expansion rate
✔️ Impact on crops and the environment

#EFSA
#PlantHealth
#ScienceToPolicy
P. omnivora spore mat on lucerne (Medicago sativa). Source: EPPO (2025): https://gd.eppo.int/taxon/PHMPOM see EFSA (2025): https://efsa.onlinelibrary.wiley.com/doi/abs/10.2903/sp.efsa.2025.EN-9452 Photomicrograph of P. omnivora spore mat, showing conidia. Source: EPPO (2025): https://gd.eppo.int/taxon/PHMPOM see EFSA (2025): https://efsa.onlinelibrary.wiley.com/doi/abs/10.2903/sp.efsa.2025.EN-9452
July 11, 2025 at 11:59 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🌱 New EFSA Pest Report

📄 #Bactericera #cockerelli

👉 doi.org/10.2903/sp.e...

EFSA’s scientific support for ranking candidate #PriorityPests.

📊 EFSA assessed 47 pests, focusing on:
✔️ Lag period
✔️ Spread rate
✔️ Impact on crops and the environment

#EFSA
#PlantHealth
#ScienceToPolicy
EFSA (2021): EFSA Pest Survey Card https://storymaps.arcgis.com/stories/f34753db87754667892511b654c3ee71 EFSA (2021): EFSA Pest Survey Card https://storymaps.arcgis.com/stories/f34753db87754667892511b654c3ee71 See EFSA (2025): EFSA Pest Report https://doi.org/10.2903/sp.efsa.2025.EN-9236 See EFSA (2025): EFSA Pest Report https://doi.org/10.2903/sp.efsa.2025.EN-9236
July 9, 2025 at 3:36 PM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🌱 New EFSA Pest Report

📄 #Ralstonia #pseudosolanacearum

👉 doi.org/10.2903/sp.e...

EFSA’s scientific support for ranking EU candidate #PriorityPests.

📊 EFSA assessed 47 pests, focusing on:
✔️ Lag period
✔️ Spread rate
✔️ Impact on crops and the environment

#EFSA
#PlantHealth
#ScienceToPolicy
Plants of Zingiber officinale with wilting symptoms. Source: EPPO (2025) Courtesy: Dennis Mernke (LTZ Augustenberg)
July 1, 2025 at 12:35 PM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🌳#Saperda candida is one of the pest to watch out for in #FruitTrees

🔍Visual examination for symptoms and signs should be performed by inspecting the trunk at ground level

europa.eu/!trWrxj

#PestSurveyCard #SurveillanceNetwork
@bertonemyia.bsky.social
@coleopsoc.bsky.social
@sjbknott.bsky.social
(A) Larva and (B) adult of Saperda candida (Sources: © James Solomon, USDA Forest Service, Bugwood.org (A); © Pennsylvania Department of Conservation and Natural Resources - Forestry , Bugwood.org) Symptoms of Saperda candida on Borkhausenia intermedia: (A) larval galleries, (B) section of infested trunk with larval galleries, (C) exit holes on trunk, (D) detail of exit hole with characteristic round shape; and on Malus domestica: (E) opened trunk with larval galleries, (F) exit hole at the base of the trunk (Sources: © EPPO Global Database, courtesy of Peter Baufeld (JKI, Kleinmachnow, DE) (A–E); © Pennsylvania Department of Conservation and Natural Resources – Forestry, Bugwood.org (F))
June 27, 2025 at 8:29 AM
Reposted by Alexandre Nougadère
efsa-plants.bsky.social
🌿 New week, new pest survey cards! 🌿

📍 The EFSA Pest Survey Card Gallery has a lot of fresh Story Maps—ready for you to explore!

🔎 Have you checked them out yet?

👉 europa.eu/!jCcdTn

🌱 #PlantHealth #PestSurveyCard #SurveillanceNetwork
June 30, 2025 at 2:07 PM