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Squash Bug Control
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Date Posted: Sun, Aug 22 - 3:10 pm
- I have been having a hard year with squash bugs taking over my zucchini plants. I am wondering if you have any tips on how to prepare the soil this winter to decrease their activity next season. Thank you!
- Good morning! Thank you for your question. You are certainly a step ahead in that you have identified the pest, and have probably read about effective means to control and hopefully rid many of the insects during the growing season. Nevertheless, they are difficult to eradicate. You are smart to be thinking about ways to overwinter the garden to minimize the problem next spring. Do you use mulch around your zucchini plants? Mulches give adult squash bugs a place to overwinter, and you want to remove that mulch if you have used it. Straw is a better alternative to use around these plants in the growing season. As fall/winter approaches, you want to be sure and clean your garden of old vines, crop, and leaf debris where adult bugs will hide over the winter. Squash bugs will rarely survive cold winters without places to hide. However, Richmond has been known to have very mild winters, and you surely don't want to give these bugs a place to hide. Once you have removed all debris (and mulch, if you have it), till the soil. This also helps eliminate the pests. If you have the room in your garden (which most city properties do not), it is also helpful to rotate your crops year to year to keep down insect population. But the best thing to do is completely clear the garden of all debris for the winter, and till the soil. One tip for next spring/summer, is to place boards or old shingles on the ground next to the garden (especially at night time). Squash bugs love to hide under these, and they make excellent traps for collecting the bugs in the morning, and then placing the bugs in a bucket of soapy water. And of course, regular inspection during the early growing season to collect these bugs from your plants helps as well. But definitely follow the guidelines for garden cleanup and tilling to properly overwinter, and that will certainly get you off to a clean start in the spring!
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Sod died-alternative
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Date Posted: Wed, Aug 18 - 2:07 pm
- We have a very small 200sf area in the front of the house that was previously sod. That grass has died this summer (we think from a fungus) and we are thinking about doing something lower maintenance like a moss. Any recommendations or thoughts on that? The yard is am sun, north east facing, good drainage. Thanks!
- Hello there! Since your sod failed it would be worthwhile to have your soil tested. You can request a soil testing kit from the local extension office-the phone number for Richmond City is (804) 786-4150. You can check this link for the process: https://www.soiltest.vt.edu/sampling-insttructions.html. Also ask about the whether the demise of your sod was most likely due to incorrect ph or a fungus. Once you've established your soil's ph (whether it's an alkaline or acidic soil) you'll be able to make informed decisions about what plants to use. If you want to use moss, you'll need soil on the acidic side-5.5. I've included a link about mosses in lawns and how to grow a moss garden. Skip to the section entitled "Moss Gardens" for pertinent information. Here's the link: https://www.pubs.ext.vt.edu/430/430-536/430-536.html You'll have to judge how much sun your space receives and whether or not that might be too much for mosses. In lieu of mosses, there are many alternative ground covers. I mentioned a number of them in the post Dog proof ground covers. Often a combination of them can be very pleasing and generally low maintenance. The addition of shrubs with some good mulch can also add interest with minimal upkeep. Enjoy the project!
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Dog-proof ground cover
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Date Posted: Wed, Aug 18 - 2:06 pm
- Hi! We have a small back yard (no trees) in the Museum District that faces southeast. It's mostly dirt and crabgrass. We also have two dogs. Can you recommend a good, tough, affordable, relatively "dog-proof" ground cover? Something relatively soft that will be okay for bare feet would be idea, if I'm not asking for too much. Thank you!
- Ok, we'll have to laser focus to meet the requirements. I think a planting of dutch clover might do the trick for you. You're probably familiar with it, it tends to pop up in lawns frequently. You're going to have to kill the crabgrass before you attempt anything else. I generally suggest covering the area with tarps, newspaper, and/or cardboard to smother the weeds. However, this process could take a couple of months and you want to plant the clover about 6 weeks before a frost. If your space is small you could remove the weeds by hand, that would be quicker. Throw the pulled weeds in the trash, you don't want weed seeds winding up in your new clean space. Till the earth you've just cleaned up and spread the seed! Next-water. The clover will sprout in about 2 weeks. You'll need to keep the seed bed moist. Once the clover goes through a winter it will be established. Then you want to weed whack or mow the clover once a month when it's actively growing to keep the planting nice and thick. This choice would be the most cost-effective way to establish a walkable ground cover. An added benefit of clover is that is adds nitrogen to your soil. Of course, there are many other interesting choices for a sunny ground cover. You might want to experiment adding other plants and creating a bit of embroidery. There's always scotch or irish moss, mazus, ajuga, speedwell, or even creeping thyme, to name just a few other possibilities. Good luck with the project!
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City Tree Removal in Front of House
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Date Posted: Wed, Aug 18 - 2:05 pm
- The city recently removed a large elm from the sidewalk area in front of our house (3200 block of Grove Ave). Do you know if we are allowed to plant in that space? If so, what would you recommend? Thank you!
- Good afternoon! Thank you for your question. I had to do a little research on this one, as I have never experienced this at my property. Fortunately, the city addresses this on their Public Works website, where they provide information on their Urban Forestry program (I provided the web link below). This website provides information about the Municipal Tree Policy Ordinance. Under that section, you will see a list of Forms. There is a Form called Application for a Street Tree Planting Permit. I have included that link as well. You will need to download that form and submit it to the City for approval to plant a tree. The City typically plants elm trees or maple trees, and either would be a good choice. It appears from the Application Form that a city staff arborist must approve your species selection before planting. You may also want to contact the City to see if they have plans to replace that tree, before you go to the expense of planting one yourself. But if they do have plans to replace it, it may be a while before they would get to it. If you're like me, you'll want to go ahead with a replacement this fall which is the best time of year to plant new trees. But be sure and complete/submit the application in the link below, and hopefully a City staff arborist will contact you soon. http://www.richmondgov.com/PublicWorks/UrbanForestry.aspx. http://www.richmondgov.com/PublicWorks/forms/applicationNewStreetTreePlanting.pdfa. Best of luck with this! Feel free to follow up with us if any other questions or concerns.
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Yellow Spots on Rhododendron Leaves
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Date Posted: Wed, Aug 18 - 2:01 pm
- My large rhododendrons have some yellow specked leaves. Been watering every other day. What are you suggestions
- Hello! Thanks for your question. Given our recent warm and humid weather conditions, the problem you are having with your rhododendron is certainly not uncommon. I suspect your plant has a fungal condition called leaf septoria (yellow leaf spot). It sounds as though the condition on your plants is not widespread at this point and there are a few steps you should take to rid your plants of this fungus. First, remove the affected leaves to get rid of as many fungal spores as possible. Secondly, take away any fallen leaves from under the plant and keep the area clean. Discard all removed leaves in the trash (not compost). Mulch the area under your rhododendrons; this helps prevent spores from spreading. It will also help retain/absorb the water when you are watering the plants, and reduce splash upwards. And when you water, it’s best to use a soaker hose at the base of your plants, versus overhead watering. Watering overhead and watering in the evening can increase fungal disease development on these plants. You can also apply a simple, all natural spray solution consisting of the following: one quart of water in spray bottle with 1 teaspoon of baking soda; add 1/2 teaspoon of canola oil and a few drops of dish soap; shake the solution well and spray on the plants. Good luck with this - improved weather conditions in the coming weeks hopefully will help as well! Let us know if you have further questions. Thanks! And of course keep a close eye on your other grow bags with your other vegetables for any similar signs. Good luck with your garden, and wishing you a strong yield!
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Worms/Caterpillars in Grow Bags w/Vegetable Plants
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Date Posted: Wed, Aug 18 - 2:00 pm
- Like many in the midwest, I have started a victory garden of sorts over the past few months, mostly in large grow bags on a pallet on my deck. This morning I noticed that the grow bag containing my romaine lettuce was full of either some very freaky worms or caterpillars, and while the worms seemed to be contained to the romaine bag, I worry for my adjacent chard, collard greens, and tomato bags. After a quick google search, I discovered two options that I was interested in: bacillus thuringiensis or diatomaceous earth, but I would like to know what option would be the most efficient in terms of use of product and frequency of applications and also the most environmentally friendly. If there is a better option than those two, I would be happy to learn also. Thank you!
- Good afternoon! Thank you for your question. My first thought when I read your question is that the solution certainly depends on the type of worm or caterpillar-like creature in your grow bag. If you have common earthworms or red wigglers, I’d say leave them alone as they are beneficial to the quality of the soil and will benefit the overall health of your plants. But it sounds like you may have something different which could ultimately harm your plant. If, for example, you have cutworms (which resemble caterpillar) and/or leaf miner larvae in your soil, you want to remove these. First, I would separate the infested grow bag from your other grow bags which contain your other vegetables. I would then pick off the visible worms/caterpillars with your fingers and submerge them in a container of warm soapy water. Although the products you mention may be effective at killing the catepillar-like creature you have, they do have harmful attributes. They may be considered organic but they still have low levels of toxic ingredients to bees. I would use an insecticidal soap solution such as neem oil or simply mix 3 tablespoons of dish soap to 1 gallon of water and pour into your infected soil. Apply this process weekly. And if you see any of these caterpillars on the plant leaves, pick them off and spray the neem oil/soap solution directly onto the plant - repeat the process weekly. And of course keep a close eye on your other grow bags with your other vegetables for any similar signs. Good luck with your garden, and wishing you a strong yield!
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Lawn options-seed or sod
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Date Posted: Wed, Aug 18 - 2:00 pm
- I’m trying to decide what to do about my front lawn. It’s a little under 60 square yards. Everything is killed off and tarps are covering the ground now to keep weeds from growing. There is no shade, all day sun. I would like to know if Tall Fescue is the best choice and also should I seed or sod. Cost is not the issue since it’s a small area. I hope you can give me some advice.
- Well, I know you didn’t ask this but what about foregoing a lawn and planting a dooryard garden instead?. I’m not much of a grass person. A patch of clover is more to my liking, at least it gives the honey bees a place to land, adds some nitrogen to the soil. Maybe a combination of a lovely shrub border, a small tree, a mix of tall and low-growing perennials, groundcovers? Since it's a small area the expense wouldn’t be staggering and you can always phase in the plantings. Something to consider.... That being said, I think you’re doing a good job of preparing for a fall planting by covering the space and killing off the weeds. If I haven't persuaded you to take a different approach, I’ll try to answer your question about seed or sod. You didn't mention why your lawn was "killed off". Is there an issue with the soil? If so, you should request a soil test kit from the Richmond VA Cooperative Extension Main Office: (804) 786-4150. The results will let you know what, if any, amendments you'll need to add. I think the choice of a tall fescue is fine and fall is a good time to start a cool-season grass. When purchasing seed, check the bag to make sure you are buying all seed and no filler. Look for the two Virginia-Maryland labels affixed to the package so you know you are buying seed mixtures or blends which comply with the quality standards of the Extension Divisions of Virginia Tech and U of MD. First, you'll need to prep the soil. Remove all the dead weeds you've killed by covering and make sure there are no roots left in the ground. This can be tedious but it will pay off in the long run. Work in any amendments your soil test dictates. Add a layer of compost, you can till it in, or if your soil isn't compacted, adding 1-2 inches to the surface should suffice. Grade the soil with a rake so the surface is smooth and uniform. At this point you can seed. Disburse the seed with a spreader and go back and forth across the lawn, then in a perpendicular direction, attempting to get an even amount of seed across the surface of the lawn. You can add another fine layer of compost so that there is good contact between the seed and soil. (For a larger lawn you would roll the seed at this point.) Then you'll need to water immediately thereafter and continue to water until the seed germinates. (Be careful when watering, keep the soil moist, don't wash the seed away.) After that a total of 1-2 inches of water a week should keep the grass in good spirits. Hand pull weeds. An established lawn could take up to 2 years with seed. If this doesn't sound like fun, you can clean up the soil as above, amend as needed, grade it with a rake, and lay sod. Do not let the sod dry out. You'll need to water the sod daily for a couple of weeks (of course, less if there's rain). During this period the sod will be putting down shallow roots into your soil bed. Avoid walking on the sod during this period. After about a month the sod will have established a better root system. Around this time it will need to be mowed. Set the mower to 3 inches. The sod will provide a quicker route to a nice green lawn if the expense is acceptable. I hope I've covered all your options. Good luck with the project!
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August Beauty Gardenia
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Date Posted: Wed, Aug 18 - 1:59 pm
- I have purchased an August Beauty Gardenia shrub and would like to give it the best chance to thrive in my yard. Would it be better to plant it in a spot with the most sun (also near the house), yet fairly exposed as no other plantings near, or in a bed which gets a good amount of sun and has established hedge (hollies) which may offer protection from the elements? Thank you in advance for your help.
- What a beautiful plant selection! You’ll enjoy the long blooming season of this plant, and of course their wonderful fragrance. In terms of best location, you should keep two things in mind. First, to ensure a prolific bloom all summer, you want to maximize early day sun exposure. If one of your described locations is on the east side of your yard and gets several hours of early day sun, that would be ideal, especially near a walkway or porch where you would enjoy the fragrance. I would try to avoid a location that is fully exposed to our late afternoon hot sun during July/August. Secondly, consider your soil and drainage in selecting your location. Gardenias like evenly moist acidic soil which provides good drainage. You want to avoid planting your gardenia where its roots would compete for moisture with nearby trees. The bed with hedge hollies would be fine if you have several hours of early day sun there. If you are planting your new gardenia this time of year, be sure and add plenty of organic matter to your soil, mulch around your plant, and provide plenty of water during this last phase of summer. Enjoy your beautiful plant, and let us know if further questions!
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Watering roses
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Date Posted: Wed, Aug 18 - 1:48 pm
- Hi i have a row of drift roses on the front on my yard, they are in full sun. I had been watering them every other day with the lawn but noticed that a few bushes had yellowing leaves which then turned brown and crispy. I am assuming that is a sign of being overwatered? Any suggestions on how to make the flowers last so they don’t turn brown so quickly in the heat? Thanks!
- Hello there, My first instinct is that you are, in fact, over watering your roses. How long have the roses been planted? If it's been a few years then watering once or twice a week should be sufficient. Is the soil well draining? Roses don't want to sit in consistently wet soil. Are you able to gauge how much water, in inches, your roses are receiving. one to 2 inches of water (rain+water combined) should keep them healthy. I believe that's about 4-5 gallons of water a week. Also, I don't think the heat is causing the roses to brown but the effects of over watering are. Back off on the watering a bit. Try to avoid the foliage and water the soil around the plants and see that they get soaked rather than sprinkled. I suspect that less water weekly (avoiding the foliage whenever possible) and a couple of good soaks a week will make you and your roses happier. Good luck!
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Yellowing Aster
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Date Posted: Wed, Aug 18 - 1:46 pm
- Hi we have a row of fall aster and notice that this year and last as the rest of the plant grows large and bushy the base starts to get yellow and then dries. the plant seems to be getting enough water. Is this normal?
- Good morning, and thank you for your question! My first thought is that you may have a watering issue. I’m assuming your aster plants otherwise have normal growth, are not stunted, and bloom well. Asters do prefer well-draining soil and like to keep well watered. However, they do not like overhead watering or sprinkling. Doing so can result in development of a fungal disease. Watering should be done at the base of the plant where fungus would first develop. It also helps to use a good organic mulch around your aster plants to help retain moisture and prevent splash to the lower leaves which can cause the yellowing. As a side note, be on the lookout for leafhoppers on your aster. They can spread bacterial disease (phytoplasma), which is a more serious problem to deal with, but with this you would likely notice other symptoms such as stunted growth and deformed flowers as well. If those symptoms develop, the plants would need to be removed as there is no cure. It does not sound like you are experiencing these specific problems with your aster, and proper watering and mulching would be the best first steps to implement. Good luck with this, and let us know if further symptoms develop.