adults emerge host:gardenline.usask.ca

Listing 1 - 10 from 10 for adults emerge

Lace Bugs
... the nymphs emerge, feed on the leaf and deposit black specks of tarry excrement on the undersides of leaves. There are two generations per year in the prairie provinces. The adults overwinter under loose bark or beneath fallen leaves. The first generation adults emerge in midsummer while the second generation completes its development ...
gardenline.usask.ca

Spiny Rose Gall
... : The recommended control is to prune galls before the wasps have matured and emerged. Since adults emerge from the old galls in spring, prune out the galls after the leaves drop in ...
gardenline.usask.ca

Bronze Birch Borer
... year life cycle. The adult borers emerge, and chew their way out of the tree bark in June. The adults lay eggs near the top ... larvae over winter and pupate in the spring. The pupa mature into adults and the cycle is repeated. As attacks are repeated the egg ... fact sheet for further information. It is possible to prevent the adults from laying eggs by spraying the trunk of the tree with chloropyrifos ...
gardenline.usask.ca

Eriophyid Mites
... into bark crevices or buds (depending on the mite species). Females emerge in the spring and travel to the flowers or leaves. The ... then lays eggs, which hatch and go through two larval stages. The adults live for approximately one month. There are several generations per year. ... spring is a good means of control as it removes the adults. If the infestation is severe, a dormant oil mixture or a ...
gardenline.usask.ca

Lilac Leafminer
... very tiny and transparent are therefore not usually noticed. Small green larva emerge from the eggs, but as they mature, they change to a ... in the soil as pupae. The first adult moths emerge in late May to early June. The adults will then mate. After mating, the female ... and pupate under leaf debris. The second generation of adult moths emerge in early August, mate and lay eggs. The larvae hatch and ...
gardenline.usask.ca

Plant Galls
... into bark crevices or buds (depending on the mite species). Females emerge in the spring and travel to the flowers or leaves. The ... They then lay eggs which hatch and go through two larval stages. Adults live for approximately one month, with several generations occurring each summer. ... spring is a good means of control as it removes the adults. If the infestation is severe, a dormant oil mixture or a ...
gardenline.usask.ca

Scale Insects
... give birth to live crawlers all under their shell. Males develop under thin shells and emerge as very delicate, usually two winged insects without functioning mouthparts. Male scale insects do not ... with insecticidal soap. The soap solution will kill the crawlers, but will not harm the adults under the shells. Sustainable horticultural information, offered free of charge to the public with the ...
gardenline.usask.ca

Strawberry Pests
... females) emerge from the soil and approximately 2-3 weeks later, lay 200-300 small, white, spherical eggs near host plants. The larvae feed on the roots, some developing into adults in ... beets, cauliflower, celery, lettuce, potato, pear, strawberries, and many flowers). Description/Damage: The nymphs and adults are sucking insects which cause blossoms, young pods and fruit to drop; older pods and ...
gardenline.usask.ca

Tarnished Plant Bug
... or orchard. DAMAGE Both the nymphs (immatures) and the adults extract plant juices by sucking on stem tips, buds ... fly when disturbed. The adults overwinter in leaf debris or other protected areas. In early spring the adults become active and deposit eggs in stems, leaf parts and flowers of host plants. The eggs hatch within a week to 10 days. The nymphs that emerge ...
gardenline.usask.ca

Yellow-Headed Spruce Sawfly
... ovipositor (an egg laying organ) has serrated teeth resembling those of a wood saw. The adults are reddish brown in colour and 8-10 mm long. The larva are caterpillar like ... and spin cocoons in which they over winter. In the following spring the adult sawflies emerge, mate and repeat the yearly cycle. There is only one generation per year. Control The ...
gardenline.usask.ca