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It is a pest to green or red ash and white ash trees although any species of ash is vulnerable; female insects lay groups of eggs in slits in the leaflets of emerging leaves in late spring. [ 1 ] [ 2 ] [ 3 ] The larvae are greenish or yellow-white, and they grow to between 14 and 20 mm (0.6 and 0.8 in) long. [ 4 ]
Siphoninus phillyreae, the ash whitefly, is a species of whitefly native to western Eurasia, India and North Africa but also introduced to North America. [1] It is known in agriculture as a pest species of fruit trees, including pomegranates, pear and apple trees. [2] [3] It also feeds on ash and ornamental pear trees.
In North America, the EAB is an invasive species, highly destructive to ash trees in its introduced range. The damage of this insect rivals that of chestnut blight and Dutch elm disease. [17] For perspective, the number of chestnuts killed by the chestnut blight was around 3.5 billion chestnut trees while there are 3.5 billion ash trees in Ohio ...
Image of black ash trunk. Tree is located in a seasonally wet, riparian habitat near a small-scale stream. Tree bark is corky and spongy. Black ash is a medium-sized deciduous tree reaching 15–20 metres (49–66 ft) (exceptionally 26 metres (85 ft)) tall with a trunk up to 60 cm (24 inches) diameter, or exceptionally to 160 cm (63 inches).
He saw evidence that emerald ash borer larvae had been feeding on Oregon ash trees, with several trees showing a marked decline. Samples have been sent to the federal lab in the eastern U.S. for ...
In collecting buprestid prey, C. fumipennis has also been recorded collecting emerald ash borer (EAB; Agrilus planipennis), a pest insect known for killing North American species of ash trees. EAB has proven difficult to detect using traditional methods of ground/visual surveys and sticky traps, both of which are costly, labour-intensive and at ...
Red-headed ash borers typically reach 12–16 mm (0.47–0.63 in) adult length, have long antennae which are thickened towards the tips, and have the rear and middle pairs of legs elongated. The reddish-brown coloration with four bands of contrasting yellow stripes and the general body shape mimics wasps , which is a common survival tactic ...
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