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larval damage

Listing 11 - 20 from 64 for larval damage

Bronze Birch Borer
... larvae have a pair of spines at the posterior end. Larval galleries are from 75 mm to 125 mm in length. Damage The feeding activities of the borer larvae girdle tree trunks ... be drought stressed. Yellow-bellied sapsucker and woodpecker injury can also induce drought conditions. The damage, these birds cause, may result in top dieback if their holes girdle the trunk. Birch ...
gardenline.usask.ca

Eriophyid Mites
... and fertilize themselves. The female then lays eggs, which hatch and go through two larval stages. The adults live for approximately one month. There are several generations per year. ... specialized winter hardy females are produced. These females fertilize themselves and move to winter shelter. Damage Mites produce galls by injecting a chemical into plant tissues during feeding. These chemicals ...
gardenline.usask.ca
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Biology of Subterranean Termites in the Eastern United States
... moisture is available inside the structure. Figure 10. A cluster of eggs with a larval termite. (S. Grube) Reproductives and Colony Composition Recent research indicates that subterranean termite social ... , billions of dollars are spent annually to control subterranean termites and to repair the damage they cause (Fig. 17). However, in nature, subterranean termites are important components of forest ...
ohioline.osu.edu

OREP - Development of Alternative, IPM-compatible Strategies For Organophosphate Resistant Obliquebanded Leafroller on Apple
... % of the apple orchards are affected by this pest, and damage in past years has ranged from 5- 40%. Resistance to conventional insecticides has resulted in decreased control of, and increased damage from, this pest. The aim of this project was to ... resistance assays, which are easier and less time consuming than traditional larval assays. In order to accomplish this three trials were set ...
res2.agr.gc.ca

FPHG -
... in many cases by the time an infestation is noticed, extensive damage has already been done. For this reason some pest controls (such as pesticide sprays) must be applied before fruit damage is observed. These sprays are usually applied to correspond with ... Several species of ladybird beetle are voracious predators in both the larval and adult stages. The larvae are elongate with distinct ...
ssfruit.cas.psu.edu

FPHG -
... cane and feeds all season. It overwinters in the larval stage in the cane, emerging as the adult moth the following spring. Feeding damage will kill the cane; the first symptom is ... controlled by an early season application of pyrethrum-based or pyrethroid compounds. Gooseberry Fruitworm The larval stage of the gooseberry fruitworm, Zophodia convolutella (Hübier), is a greenish worm with darker ...
ssfruit.cas.psu.edu
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American Chestnut Foundation - Oriental Chestnut Gall Wasp
... in a bud. Some buds may contain 25 eggs. The eggs hatch in 40 days. Larval growth is very slow during autumn and winter. In the spring, larvae emit a substance ... which provide the larvae safe harbor as it transforms into an adult. Trees suffer severe damage and often die. As observed in Georgia, adults emerge from the galls during late May ...
www.acf.org

Queensland fruit fly
... major fruit fly pest Description and life history Seasonal development Susceptible fruits Fruit fly ‘stings’ Damage to fruit Further information Acknowledgment IMPORTANT: Pesticides Act 1999 Take note that you must use ... ’ in an apple Damage to fruit Figure 10. Peach destroyed by fruit fly Infested fruit may fall from the tree as a result of larval infestation. The style of damage caused by fruit ...
www.agric.nsw.gov.au

All About Roses
... their baggage. Being voracious feeders, the larvae (caterpillars, grubs) and the adult beetles cause heavy damage to plant parts and heavy financial losses to farmers, flower growers, and orchard owners. ... grass provides food and hiding place for the grubs. Apply the product, Meritâ„¢ (imadichloprid) for larval control prior to the emergence of adult beetles and during grub infestations. Timing of ...
www.ars.org

Organic Asparagus Production
... adult is similar to that of the common asparagus beetle; however, the larval stage does little damage to the crop because it feeds primarily on the fruits or berries. Sanitation ... on asparagus addresses: Insects, Diseases, and Weeds. Each entry includes: Description of the Pest; Damage; Cultural Control; Biological Control; Organically Acceptable Methods; Chemical Controls; and When to Treat. Contact ...
www.attra.org




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