# Event Details - **Event Name**: Plant Gall Field Recorder Day - **Event Start and End Date**: Sat, 19 Sep, 2026 at 10:00 am – Sat, 19 Sep, 2026 at 04:00 pm (+01:00) - **Event Description**: Join Tommy Root to explore and record the plant galls of Welsh Harp Open Space.About this EventA plant gall is an abnormal growth of plant tissue caused by the invasion of another organism – for example, a wasp, fly, mite, fungus or even bacterium – within the plant tissue. Galls typically form on leaves, stems, roots, or flowers and come in an astonishing variety of shapes, sizes and colours. The structure itself forms due to the plant's response to irritation or chemical signals from the invading organism. Galls provide food and shelter for the invading organism inside and, while they may look unusual, are generally not harmful to the overall health of the plant.Join like-minded nature enthusiasts for a day of learning about, finding, identifying and recording plant galls in an informal setting. Naturalists of all levels (from beginner to expert) are encouraged to attend, share their experiences with peers and help one another improve their knowledge and build confidence in biological recording. Plant gall specialist Tommy Root will be leading the day and providing guidance throughout.What will the day involve?An introduction to recording plant galls and the ID resources available.Practical experience of finding, identifying and recording plant galls in the field.Access to a knowledgeable plant gall specialist with the opportunity to discuss identification questions.A chance to meet like-minded nature enthusiasts. https://cdn-az.allevents.in/events1/banners/a93869b0-c2ae-11f0-a572-671c7f3c2484-rimg-w1200-h674-dc010101-gmir.jpg What do I need to know in advance?This event is aimed at adults only. Attendance is free, but booking is essential as spaces are limited.Invertebrate recorders of all abilities are welcome, but booking is essential.Identification will take place in the field whenever possible, but some plant gall specimens may need to be collected for further examination and ID at a later date.We'll be outside for the whole day so please bring suitable clothing for all types of weather, as well as your lunch and any snacks you will require with you on the day.All records collected will be added to iRecord in order to share our findings with the site managers, Greenspace Information for Greater London (GiGL), London Natural History Society (LNHS) and relevant national recording schemes and societies.Check out our Info for Field Recorder Day Attendees page for more info (including instructions for setting up iRecord): https://biologicalrecording.co.uk/info-for-field-recorder-day-attendees/ https://cdn-az.allevents.in/events9/banners/a9db6070-c2ae-11f0-a572-671c7f3c2484-rimg-w1200-h675-dc020302-gmir.jpg Plant Gall Specialist: Tommy RootTommy Root is an experienced recorder for the British Plant Gall Society and also serves as the London Natural History Society Plant Gall Recorder.Welsh HarpWelsh Harp (also known as The Welsh Harp, Welsh Harp Open Space or alternatively, Brent Reservoir) is a Site of Special Scientific Interest (SSSI) and Local Nature Reserve (LNR) in North London, on the boundary of the boroughs of Brent and Barnet. Originally built in the 1830s to provide water for London’s canals, the site comprises 170 acres of open water, marshes, woodland and grassland. It is recognised as one of the most important bird breeding areas in Southern England. The varied habitats also support a range of other wildlife. Find out more here: https://www.welshharpfriends.co.uk/about - **Event URL**: https://allevents.in/london/plant-gall-field-recorder-day/100001964393827819 - **Event Categories**: health-wellness - **Interested Audience**: - total_interested_count: 0 ## Ticket Details - **Ticket Price Range**: min: 0, max: 0, currency: GBP ## Event venue details - **city**: London - **state**: EN - **country**: United Kingdom - **location**: Welsh Harp Open Space - **lat**: 51.5709457 - **long**: -0.2493048 - **full address**: Welsh Harp Open Space, Welsh Harp Open Space, London, United Kingdom ## Event gallery - **Alt text**: Plant Gall Field Recorder Day - **Image URL**: https://cdn-az.allevents.in/events7/banners/79c009bb462d80b219f20422a82cb4300e97fe4447088c29dc52a20761eb745b-rimg-w1200-h674-dc010101-gmir.jpg?v=1763369698 ## FAQs - **Q**: When and where is Plant Gall Field Recorder Day being held? - **A:** Plant Gall Field Recorder Day takes place on Sat, 19 Sep, 2026 at 10:00 am to Sat, 19 Sep, 2026 at 04:00 pm at Welsh Harp Open Space, Welsh Harp Open Space, London, United Kingdom. - **Q**: Who is organizing Plant Gall Field Recorder Day? - **A:** Plant Gall Field Recorder Day is organized by Keiron Derek Brown. ## Structured Data (JSON-LD) ```json [ { "@context": "https://schema.org", "@type": "Event", "name": "Plant Gall Field Recorder Day", "image": "https://cdn-az.allevents.in/events7/banners/79c009bb462d80b219f20422a82cb4300e97fe4447088c29dc52a20761eb745b-rimg-w1200-h674-dc010101-gmir.jpg?v=1763369698", "startDate": "2026-09-19T10:00:00+01:00", "endDate": "2026-09-19T16:00:00+01:00", "url": "https://allevents.in/london/plant-gall-field-recorder-day/100001964393827819", "eventStatus": "https://schema.org/EventScheduled", "location": { "@type": "Place", "name": "Welsh Harp Open Space", "address": { "@type": "PostalAddress", "streetAddress": "Welsh Harp Open Space", "postalCode": "NW9 7AB", "addressLocality": "London", "addressRegion": "EN", "addressCountry": "GB" }, "geo": { "@type": "GeoCoordinates", "latitude": "51.5709457", "longitude": "-0.2493048" } }, "eventAttendanceMode": "https://schema.org/OfflineEventAttendanceMode", "description": "Join Tommy Root to explore and record the plant galls of Welsh Harp Open Space.", "offers": [ { "@type": "AggregateOffer", "availability": "https://schema.org/InStock", "priceCurrency": "GBP", "availabilityStarts": "2025-11-16", "availabilityEnds": "2026-09-19T16:00:00+01:00", "validFrom": "2025-11-16", "lowPrice": "0.00", "highPrice": "0.00", "price": "0.00", "url": "https://allevents.in/london/plant-gall-field-recorder-day/100001964393827819" }, { "@type": "Offer", "availability": "https://schema.org/InStock", "priceCurrency": "GBP", "availabilityStarts": "2025-11-16", "availabilityEnds": "", "validFrom": "2025-11-16", "url": "https://allevents.in/london/plant-gall-field-recorder-day/100001964393827819", "price": 0, "name": "Field Recorder Ticket (no donation)" }, { "@type": "Offer", "availability": "https://schema.org/InStock", "priceCurrency": "GBP", "availabilityStarts": "2025-11-16", "availabilityEnds": "", "validFrom": "2025-11-16", "url": "https://allevents.in/london/plant-gall-field-recorder-day/100001964393827819", "price": 0, "name": "Field Recorder Ticket (with donation)" } ], "organizer": [ { "@type": "Organization", "name": "Keiron Derek Brown", "url": "https://allevents.in/org/keiron-derek-brown/18886897", "description": "Keiron Derek brown is a naturalist interested in terrestrial invertebrates, particularly earthworms and other soil inverts. 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