Any experienced gardener will tell you that when it comes to plant diseases, regardless of how much you weed, water, and worry, certain problems are beyond your control. There are, however, several things you can do to prevent or lessen the chance of plant disease in your garden.
1. Make Sure You’re Planting In The Right Place
Choose an open, full-sun garden location with good drainage. Few garden plants can withstandwet feet. Soil should be loamy, loose, and well worked, free of weeds, debris, sticks, and stones.Avoid compacted soil.
花园地块有足够的空气流通也是很重要的。最好避免在建筑物之间放置花园，除了坚固的围栏，或在任何没有良好的交叉通风的地方。种植时，植株之间要留出足够的空间，以提供良好的气流。
2. Check Out Your Soil Conditions
了解你的植物喜欢的pH值水平，并进行相应的修正是很重要的。Soil pH test kitsare available for purchase at local home and garden centers or online. If you seek a complete soil analysis, take a sample to your county extension office for evaluation.
Enhance soil with generous amounts of well-aged herbivore manures (goat, sheep, llama, cow, horse, mule). Garden soil should be worked to a depth of at least 2 feet with a ratio of 1 part well-aged manure, to 4 parts topsoil. Plants flourish when supplemented with agedgarden compost: A vigorous, healthy, well-watered plant is better able to fend off most any plant disease that invades the garden.
3. Watch When You Water
People and tools transfer disease from plant to plant. Avoid working in the garden when plants are wet. Plant disease spreads through water.
为了帮助植物保持最佳的健康状态，早上浇水，让植物有机会在中午干燥。植物叶子湿润的时间越长，患病的几率就越大。
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Also, avoid wetting plant foliage. Adrip irrigation systemis the best way to reduce the risk of disease inoculum splashed onto fruits and foliage during watering or heavy rains.
4. Keep The Garden Clean
在园艺方面，卫生是成功的关键。首先仔细检查你带到花园里的任何植物。
添加到花园里的植物应该有健全的茎干，挺拔和坚固，无论是在植物上还是在土壤中都没有疾病的迹象。小心是有好处的，因为一株生病的植物会感染整个家园的生态系统。
To avoid inviting disease to the garden, keep the area free of weeds. Not only are weeds unsightly, but they are also disease carriers and provide a haven forinsect pests. Groom garden plants regularly, removing dead leaves and spent flowers or fruit. Remove plant debris promptly after harvest.
5. Make Smart Plant Purchases
When purchasing new plants, look them over carefully to be sure you do not see white mildew, black spotted leaves, or obvious signs of problems. Purchase and plant only healthy, vigorous, pathogen-free cuttings, transplants, bulbs, and seeds.
If you are purchasing plants from commercial nurseries or online, opt for certified-disease-free plants. When planting, carefully examine the roots for signs of disease or insect infestation.
Select resistant/tolerant cultivars with genetic resistance to specific diseases. Your county extension office can provide you with a list of cultivars with specific types of resistance that do well in your area.
As an example, Marshall’s Delight and Blue Stocking are bee balm cultivars resistant to powdery mildew. Tomato cultivars resistant to Fusarium wilt and Verticillium include Celebrity and Better Boy.
记住，尽管你尽了最大的努力，你的花园仍然会生病。没有办法阻止它发生。然而，通过勤奋地使用上述方法和实践，您可以显著地减少可能遇到的问题的数量。
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