If you use slug or snail bait, be careful if you have pets, as many commercial varieties contain metaldehyde, a dangerous poison. Opt for a product with iron phosphate instead, which is far less harmful to pets, birds and beneficial insects than metaldehyde. Several diseases can target hostas, in particular anthracnose, Hosta virus X and a condition called sooty mold.
The fungal disease anthracnose is hosta's most common foliar disease. It thrives in warm and wet conditions, resulting in whitish-brown spots and torn leaves.
Ensure plenty of airflow between plants to avoid this disease. The symptoms of Hosta virus X include mottling, ringspots, stunting, puckering, distortion and leaf twisting. There's no cure for this disease; the plant will have to be discarded, according to Missouri Botanical Garden. Anthracnose fungal disease for example, causes large irregular spots with dark edges. The dead leaf tissue in the center of these spots often falls out.
Avoid overhead irrigation, especially late in the day and remove infected foliage to reduce the spread of the disease. Learn More. Your browser doesn't support the HTML5 video tag.
Audio Creative Bulb Combos. Audio Lady Ferns for Shade Gardens. Since they are active at night, you will not see them during the daytime. There are many different recommendations for dealing with slugs so I suggest starting with basic solutions, as is the case when it comes to most gardening problems.
First, clean up the garden and try to eliminate slugs in hiding. Next year, thoroughly rake the garden in early spring to remove leaves, plant debris and any slug eggs that might be in the debris. Water your garden beds in the morning so that they will be dry by evening.
Consider thinning or dividing plants if they are too crowded. Minor slug problems can be controlled by picking them off at night, using a flashlight to spot them. Carefully check for slugs around the base of damaged plants and potential adjacent hiding places that are moist and dark.
Create your own slug traps by using overturned pots, pieces of board or shingle or wet newspaper that is folded in half or rolled up. Check the traps in the morning and discard any slugs. Beer is a well-known trap attractant for slugs. How do you treat holes in hostas? To do this, take a small, very shallow container about an inch high and bury it in the ground near your hostas, then fill it with beer.
This will attract the slugs and they will fall into the container and drown. Are coffee grounds good for hostas? Coffee grounds can be used to mulch plants that slugs love to feast on, such as hostas, ligularias and lilies. Try them for daffodils and other spring bulbs as well. You also can rid areas of slugs and snails by mixing up some instant coffee and making it two to three times stronger than you ordinarily would.
How do I keep bugs from eating my hostas? In a spray bottle, mix a solution of 2 cups water, 10 drops tea tree oil and 10 drops liquid dish detergent. Spray onto plant leaves, and repeat as necessary to keep insects from attacking your hostas.
How do I stop slugs eating my hostas? A There are a few ways to stop slugs eating your hostas. You can surround them with a ring of crushed eggshells, which are too sharp for the slugs to crawl over. You can bury beer traps too. Fill some small containers with beer and bury them in the soil, so they are level with the surface. How often should you water hostas? In an ideal hosta garden, the plants would receive generous watering all season long.
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