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Leafminers...
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Date Posted: Tue, Aug 17 - 8:46 pm
- My broccoli, cabbage and cauliflower has white vine like lines on the leaves. What are they and how do I get rid of them. My plants look like they are not thriving now.
- It sounds like you've got leafminers. They have a broad range of host plants and they seem to like your garden. The first thing to do is remove the affected leaves and dispose of them in the trash (not in compost). If you check the underside of the leaf you will most likely see small white eggs, you don't want those to hatch, so straight to the trash. There are several generations of this pest in one season so you will need to keep a close eye out for signs of their existence. You may see eggs, larvae and flys. Sometimes using sticky traps and row covers for the flies works well. If just removing the affected leaves isn't keeping the numbers down you might try using neem oil or beneficial insects such beneficial nematodes or parasitic wasps. I personally haven't had experience with beneficial insects as an intervention so I don't have any particular insight there. Start with removing the affected leaves and checking plants frequently for eggs and tunneling larvae. Good luck and good gardening!
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Raised beds - yellowing leaves
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Date Posted: Tue, Aug 17 - 8:41 pm
- I created new raised beds and filled them with Miracle Grow Raised Bed soil combined with mushroom compost. All of my plants have yellow leaves. The soil should be provided the necessary nutrients, and I was wondering if the weather might be part of it? Can you give me an idea of what I should do? Thank you
- Hello - interesting question. The first thing that comes to mind is your soil. It sounds like you have created a very rich soil for your new plants. Typically, yellowing leaves can indicate a nutrient deficiency, and/or the soil is too wet. As you know, mushroom compost does a good job of soaking up a lot of water and helps keep soil moist. It is also nutrient-rich, and contains a high degree of soluble salts. I’m wondering if your ratio of mushroom compost to soil is too high. The mushroom compost should make up about 1/4 of the total volume of the soil. If your soil is too concentrated and the plants are seedlings or are very young, this may result in your plants dying. The soil may actually be too rich for them. Also make sure your soil is not staying too wet. It should be allowed to dry before adding water. Good luck, and let us know if we can help further!
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Boxwood with patches of brown leaves
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Date Posted: Tue, Aug 17 - 8:35 pm
- I just bought a house and I have a boxwood bush in the front that has patches of brown leaves. Is this that blight that I've heard people talking about? would it be a good idea to remove the bush or is there something I can do?
- Thanks for your question. This does sound like it could potentially be boxwood blight which is a fungal disease, and for which there is no cure. This disease first appears as lesions with dark brown edges on the leaves and black streaking on the stems. The foliage then turns brown and falls off. Observe the leaves and stems on your boxwood for these signs. If your plant is minimally affected, you can cut off affected branches, clean up debris from the ground, bag the trimmings, and put in the trash (do not compost). You may then be able to keep the disease at bay by spraying a chlorothalonil-containing fungicide every 7-14 days. Be sure and sanitize your garden tools with a 1:9 bleach to water solution to avoid spreading the disease. If your boxwood is heavily infected and unsightly, it may be easiest and safest in the long run to remove the whole plant. It’s also important to know that the spores from the infected plant can remain in the soil for 5-6 years, so if you want a replacement plant be sure and select a boxwood cultivar with a high level of resistance which will not require a fungicide treatment.
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Mulberry debris
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Date Posted: Tue, Jun 22 - 4:11 pm
- A neighboring mulberry tree drops berries into my small patio/mulch bordered backyard. We sweep the berries off of the patio daily but are not able to effectively clean the mulch area where the berries fall. I've noticed an uptick in bugs, birds, weeds/growth/sprouts, etc. in the mulch. 1) Should I work harder to clear the mulch area of these berries or is it okay to let them fall and naturally "decay" in the mulch? 2) What would be the best groundcover (mulch, dirt, stones, etc.) to be under a mulberry tree constantly dropping berries?
- Hello there, As you know mulberry trees are prolific berry producers. I don't see any reason not to let the berries compost into your mulch. However, it would be a good practice to hoe the mulch every now and then to prevent the berries from growing into trees. Also, they will still attract the birds and bugs that you've mentioned so that may not be a satisfying practice for you. One option would be to change the mulched area to tightly laid pavers. Then you could sweep that at the same time you sweep your patio. I suggest tightly laid because any open ground will provide a hospitable place for the mulberries to sprout. They are determined plants. Another option would be to have a polite conversation with the owner of the tree requesting that the overhanging limbs on your property be trimmed. If the tree is properly pruned, the offending branches on your property would be removed and the rest of the tree should be pruned for balance. You may want to bring this to the owner's attention to ensure a correct pruning job and to make sure all parties are happy with the results and the tree is properly preserved. Hope the helps!! Let us know if you have further questions.