2018年10月30日 · One species that was common in 2018—the dogwood sawfly—is unique in that it not only causes plant damage but can also damage wood trim and siding of homes. The dogwood sawfly is one of our commonest pests of native and landscape dogwoods (Cornus spp.).

Horntail or wood wasp are any of the 150 non-social species of the hymenopteran family Siricidae, a type of wood-eating sawfly. The common name "horntail" derives from the stout, spine-like structure at the end of the adult's abdomen which is present in both sexes.

One species that was common in 2018—the dogwood sawfly —is unique in that it not only causes plant damage but can also damage wood trim and siding of homes. The dogwood sawfly is one of our commonest pests of native and landscape dogwoods (Cornus spp.).

Roundheaded and flat headed wood borers are mostly beetles, and a few caterpillars, that infest terminals, shoots, twigs and roots of living trees. Terminal and shoot insects are of particular importance in the initial stages of forest regeneration and early stand growth.

The shoot-borer sawfly, Ardis brunniventris Hartig, is a true stem borer in the larval stage. The leaf-rolling rose sawfly, Blennocampa pusilla Vitasaari & Vikberg, is most destructive causing a complete folding of the leaflets. Severe attacks result in loss of vigour due to reduced photosynthesis and premature leaf fall.

Most are external leaf feeders, but many are internal wood borers, stem borers, gall formers, leaf rollers, or leaf miners. Many taxa are characterized by a consistent feeding behavior within their group. For example, most Heterarthrinae in North America are leaf miners, while Siricidae are all wood borers. Wood-boring larvae larva: the ...

2020年4月20日 · Stem Borer Sawfly (Cephidae) laying eggs to a stalk of wheat. Many species of sawfly place the eggs in the petiole, arranged in either a single or double row. Some gall making species lay their eggs in the growing leaf bud.

2018年5月11日 · Elm leafminer is a sawfly whose feeding will be noticed soon. The larvae feed within the leaves, between the upper and lower layers. If several larvae are mining one leaf, their mines will coalesce, leaving the entire leaf brown and hollowed-out.

Janus cynosbati (Wood Borer Sawfly, Oak Stem-sawfly) Genus: Janus (a genus of stem sawflies) Tribe: Hartigiini (a tribe of hymenopterans) Subfamily: CEPHINAE (a subfamily of hymenopterans) Family: CEPHIDAE (stem sawflies) Superfamily: CEPHOIDEA (a superfamily of sawflies) Suborder: SYMPHYTA (sawflies) Order

Janus femoratus (Wood Borer Sawfly) Genus: Janus (a genus of stem sawflies) Family: CEPHIDAE (stem sawflies) Superfamily: CEPHOIDEA (a superfamily of sawflies) Suborder: SYMPHYTA (sawflies) Order: HYMENOPTERA (ants, …