posted 2015-Nov … 1 of 6. Broadcast: Sat 6 Sep 2014, 12:00am Published: Sat 6 Sep 2014, 12:00am I have noticed loads of holes on my geraniums leaves,but no insects.does anybody knows,who can it be and how to get rid of it?thanks. They seem to prefer hostas, but will attack virtually anything with leaves. Sadly, they look bitten and curled, although they seem to flourishing ok. Like other garden plants, geraniums sometimes fall prey to insect pests that mar their beauty and lead to a decline in overall health. That will be little green caterpillars just search and pick them off. pelargonii) Round water-soaked spots become tan to brown sunken spots, 1/8 to ¼ inch in diameter; Leaf spots grow into water-soaked, brown, V-shaped lesions with a … 0. They don't start eating at the edge of the leaf, like caterpillars and sawflies, but go right for the middle. Although insects may feast on them, deer usually leave geraniums alone. Posts. User #78054 9161 posts. Lyn Devon Posts: 16,510. Putting out lots of new shoots. What could it be ? I have 4 pots of geraniums and in the last 2 weeks they have gone from blossoming like crazy to absolutely no flowers. Slug feeding damage presents as holes in leaves between a 1/4th to 1 inch in diameter. Do not bring ground-planted geraniums into the production area or propagate from them. I have inspected the plants but I don't see anything attached the the leaves that could be eating them. September 2014. The leaves are covered with holes. pelargonii (syn. Snails , grasshoppers ? X. campestris pv. Remember to put them on the bird table. Ivy Leaf Pelargoniums is known to keep cats away from gardens due to the strong oil content in the leaves. I 1st thought it was the Brown Grasshopper, cause they would hang around on the leaves. I've pulled off a few grubs, but still those yellow spots appear, which eventually look like lacework on the leaves. I never had any problems (ever) with insects doing this. Again, it was the 1st time I saw that color of Grasshopper anywhere B-4. Basket Case. Verticillium Wilt: Middle and upper leaves collapse, dry, and fall. Bacterial Leaf Blight Xanthomonas hortorum pv. Some of these include: Standard Geranium The most common variety on … If you have little holes in the leaves it is most likely some type of caterpillar (they are so small you probably won't see them). If it is mostly the flowers being eaten, then it is probably deer. Whirlpool Forums Addict reference: whrl.pl/RetdWz. Round holes keep appearing in my geranium leaves . Destroy infected plants. Some of the holes are large and some small. "And as a gardening friend of mine once said, 'You can eat holes - they cook up really well.'" Vascular tissue of affected stems turns brown or black. How do I kill the perps and hopefully keep them away. The leaves have all been eaten away by something but I don't know what. Geraniums can be easily propagated from cuttings. 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