White Pine Blister Rust
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White pine blister rust is a fungal disease that requires both white pines and species of currants and gooseberries to complete its lifecycle. It was introduced from Europe in the 1890s and can cause defoliation, death of white pines, and was declared a public nuisance in some states. The disease spreads via spores from ribes plants to pine needles and causes needle discoloration, flagging branches, trunk cankers, and decay. Monitoring, improving tree health, removing ribes plants, and bark tracing can help manage the disease.
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Wood-boring beetles are a major cause of damage to wood structures in homes. There are several types of wood-boring beetles that infest homes, including lyctid powderpost beetles, anobiid powderpost beetles, and bostrichid powderpost beetles. These beetles vary in size, shape, the types of wood they infest, and whether the larvae reinfest the same wood. Control methods depend on the severity and location of the infestation, and may include reducing wood moisture, surface treatments, mechanical removal, heating, or insecticide applications.
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Wood-boring beetles are a major cause of damage to wood structures in homes. There are several types of wood-boring beetles that infest homes, including lyctid powderpost beetles, anobiid powderpost beetles, and bostrichid powderpost beetles. These beetles go through life cycles where the larvae bore into and feed on wood, while the adult beetles emerge through small exit holes, often leaving a powdery wood dust. The type of wood, its moisture level, and environmental conditions affect the severity of damage caused by each beetle species. Control methods include managing wood moisture, using surface treatments on wood, and insecticide applications if an active infestation is detected
2 Plant Health Care Fungal Pathogens Lecture
The document discusses several fungal pathogens that affect plants. It describes the structures and life cycles of fungi, including hyphae, mycelium, and fruiting bodies. Several fungal diseases are then summarized, including powdery mildew, rust, early blight, fusarium wilt, and verticillium wilt. The diseases are grouped based on whether they primarily affect leaves, stems, or roots. Specific symptoms and management strategies are provided for selected fungal pathogens.
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Management care
The document discusses proper garden care and weed control. It explains that weeds compete for resources and harbor pests. There are two main types of weeds - annuals that die each season and perennials that can regrow from root fragments. Methods for controlling annuals include mulching, hand pulling, and smother crops. Perennials require diligent pulling and cutting roots below the soil surface. The document also provides tips for watering, thinning plants, and using organic mulches to moderate soil temperature and suppress weeds.
Wood Boring Beetles in Homes PDF.pdf
Wood-boring beetles are a major cause of wood damage in homes after termites. There are several types of wood-boring beetles that infest homes, including true powderpost beetles (lyctid beetles), anobiid powderpost beetles, and bostrichid powderpost beetles. These beetles vary in size from 1/10 to 1/4 inches and damage both hardwoods and softwoods. Their lifecycles take 9-12 months and they emerge as adults, leaving distinctive powdery exit holes. Proper moisture control and targeted chemical treatments can help control active wood-boring beetle infestations.
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White Pine Blister Rust
- 4. Often Leads to Death of White Pines Two White Pines Removed due to Blister Rust Infection
- 12. More Ribes
- 13. More Ribes
- 14. Life Cycle of White Pine Blister Rust
- 15. White Pine Blister Rust Life Cycle II
- 23. Slightly Yellowing Needles in the Spring
- 24. Canker Associated with Yellowing Needles
- 25. Canker Associated with Yellowing Needles
- 27. Branch Flagging
- 28. Branch Flagging and Associated Canker
- 29. Small Tree Infected with Blister Rust Margin of the canker is orange
- 30. Trunk Cankers
- 33. Trunk Cankers and Resin Flow
- 34. Sunken Trunk from Old Infection
- 35. Trunk Cankers Greatly Affect the Strength of the Tree
- 36. Extensive Decay & Strength Loss Small amount of Sound Wood Outline of Healthy Tree
- 38. Tree Failure due to Trunk Canker
- 39. Resin Flow Associated with Canker
- 40. Branch Canker from Fallen Tree
- 46. Un-Thinned VS. Thinned Pines
- 48. Thinned Pines, increased air flow
- 49. Poor Air Flow
- 50. Increased Air Flow around a single Tree
- 53. Bark Tracing