Inchworms found on Black Locust
Unidentified, family Geometridae
Hostplant - Robinia pseudoacacia
23/03/23 - NSW, Berrima
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It was such a glorious Saturday morning, I couldn’t pass up a bike ride on the Mon River Trail. It’s hard to believe the spring ephemerals are mostly gone now that the canopy has closed in, but Mother Nature doesn’t doddle. As compensation, she has given us stunning new greens and a lush carpet of ferns.
From top: black locust (Robinia pseudoacacia), a Central Appalachian endemic that has been widely cultivated outside of its native range and is now naturalized in many other parts of North America and Europe; American bladdernut (Staphylea trifolia), a large, suckering shrub that forms the most amazing fruit, encased in a three-chambered bladder; Virginia spiderwort (Tradescantia virginiana), which despite its unappealing name is an absolutely gorgeous, spring-blooming dayflower; lyreleaf sage (Salvia lyrata L.). a highly appealing spring-blooming mint with incredibly showy foliage; Philadelphia fleabane (Erigeron philadelphicus), distinguished from other spring asters by it clasping leaves; Virginia waterleaf (Hydrophyllum virginianum), an edible green sometimes referred to as Shawnee salad; and Canada violet (Viola canadensis), one of the last and most stately violets to bloom in this area.
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flickr
n344_w1150 by Biodiversity Heritage Library
Via Flickr:
The Avicultural magazine Ascot, Berkshire, etc. :Avicultural Society, etc. biodiversitylibrary.org/page/56188723
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Blossoms and leaves from a robinia pseudoacacia tree in black vase
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Black locust tree in bloom. Robinia pseudoacacia. Whenever they’re in bloom you can hear the cedar waxwings high in the branches nipping the flowers off at the back to steal the nectar. I’ve walked through the woods this time of year but in other years and had blossoms showering around me, their sweet heady scent filling the air, like a preview of paradise.
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November 24th, 2023
Locust Borer Beetle (Megacyllene robiniae)
Distribution: Originally found only in the northeastern USA, but now found throughout the USA and southern Canada.
Habitat: Usually found in areas where the black locust tree Robinia pseudoacacia is present, especially where goldenrod can also be found; usually uncultivated fields and meadows.
Diet: Larvae feed on woody tissues of the black locust tree; adults feed on the pollen of goldenrod flowers.
Description: The locust borer beetle is a serious pest of black locust trees, singlehandedly destroying the value of what is otherwise an extremely valuable timber tree. Female beetles lay their eggs near wounds or in crevices, where newly-hatched larvae will overwinter. In the spring, they bore into the tree bark, forming tunnels 10 centimetres long and 0,7 centimetres wide. These tunnels serve as an infection site for fungi, which can infect the trees and render them stunted and diseased. Trees suffering from drought and those growing in open areas, like roadsides, or in eroded or nutrient-deficient soil are especially vulnerable to attack. This species isn't known to feed on any other tree species.
(Images by 1) Marcie O'Connor (adult), 2) Lacy L. Hyche (larva) and 3) James Solomon (damage))
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flickr
n52_w1150 by Biodiversity Heritage Library
Via Flickr:
The Garden London,1871-1927 biodiversitylibrary.org/page/32364622
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