Your least-affected roses ... Japanese beetles, thrips ....?.
strawchicago z5
10 years ago
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strawchicago z5
10 years agoRelated Discussions
Will this affect the beetles?
Comments (16)What I'm seeing in my South NJ garden.. Beetles are horrible. Take my purple cone flowers, the heads & undersides are filled with JB's. They also love yellow primrose & one variety of my Loosestrife - the common purple - they don't appear to go on the pinker one. Roses - my rugosa Polar Ice is loaded - they are eating the foliage as there are no blooms. My Roseraie de l'Haÿ' not so much. They are also on Leda eating foliage. Ballerina is so-so with JB's. My Gene Boerner is blooming, they are not touching it. They are on the wild blueberries, maple & oak trees. They aren't on the Laurels so much. As far as sprays - the best I've used out of Seven, Orthene, Ortho Max (red bottle) and Ortho rose pride - the Ortho max & Ortho rose pride are the best. Rose pride kills them the fastest....See MoreNo spray roses worth buying, winter protect rose, and Japanese beetles
Comments (10)Good idea, Jim, that would be sturdy & easy to clean. What store did you get it from? I will have to look for that. One healthy rose worth buying: William Shakespeare 2000, I never find any Japanese Beetle on that for the past 4 years, since its petals are tightly-packed, and JB can't get inside. I have W.S. 2000 in a flooded area, with the overflow of rain barrel dumping water on that tiny rose, yet it's clean. I also put gypsum (for its zillion-petals), and cracked-corn in the planting hole (for anti-fungal agents in corn, such as zinc and copper). How one prepare the planting hole determines how disease-resistant it is. If the hole is well-drained, and has beneficial microbes, it will be healthy. When I piled up horse manure on Golden Celebration, I was surprised that the previously compacted soil underneath is made fluffy, thanks to the microbes from the well-rotted manure. The below link explains why: http://www.naturalenviro.com/Article.php?ArticleSKU=Soil-Building "The broad and diverse population of soil microorganisms will immediately begin to build an aerobic zone in the soil. The aerobic zone is the top portion of the soil that supports plant life. A healthy soil will normally have an aerobic zone 8-12 inches deep. Most soils today have an organic matter content of less than 1% and usually have very shallow aerobic zones (1-2 inches). One of the main causes of this is the lack of diverse population of beneficial soil microbes. Soils that have low organic matter and shallow aerobic zones also have a very low water holding capacity, are compacted, and have very low oxygen content. These conditions are very adverse to good root development by turf or plants and usually indicate very low microbial activity. When you apply microbes, you will see conditions in your soil begin to change quickly." An excerpt from another site on humus: http://www.naturalenviro.com/Article.php?ArticleSKU=humic-acid-role "Humic acid is also especially important because of its ability to chelate micronutrients increasing their bio-availability. Humic acid stimulates microbial activity by providing the indigenous microbes with a carbon source for food, thus encouraging their growth and activity. Soil microbes are responsible for solubilizing vital nutrients such as phosphorus that can then be absorbed by the humic acid and in turn made available to the plant. Additionally, microbes are responsible for the continued development of humus in the soil as it continues to break down not fully decomposed organic matter." William Shakespeare 2000 as own-root can take lots of rain. I look over the pictures over the last 4 years, including the 1st year when it was in a pot, with chemical fertilizer. My rating: it was really stingy in a pot, from high-nitrogen-soluble. It gave lots of bloom with sulfate of potash & gypsum, but the health can't be compared to horse manure. This year with too much rain: I used red-lava-rock & cocoa mulch, bloom-quality is good, but leaves got holes from excess water, but no black spots. Below is William Shakespeare when I used horse manure & alfalfa meal, 100% healthy, fantastic bloom-color and quality: Here's William Shakespeare 2000 bloom with horse manure: nice purple, thanks to the trace elements in horse manure. I like more than what I have now, deep crimson from red-lava-rock:...See MoreRose Depression and Japanese Beetles
Comments (27)Another interesting chat on Japanese Beetles. I'm in the Ottawa area and after about 20 years of rose growing the Japanese Beetles have found me (and the Experimental farm's roses too). It's disgusting. Picking twice a day hardly makes a dent. Up until a few years ago I'd never seen one on my property. They prefer my scented roses like Hansa and Blanc double de Coubert. Hansa is a very deep color so I don't go with the light colored rose theory, as it seems to be their favourite. My Knockouts are not as affected and my Therese Bugnet seems to have its first big flush before the JBs come (and stay till September). I've tried geraniums unsuccessfully. But I've also read that they go for the tallest first. So, I think the geraniums would need to be raised on some sort of pedestal or bench to attract the JBs before they get down to the rose height. I tried pink geraniums and I've read white ones might be superior. I'm thinking that the same might go for any other sort of "repellant" that perhaps it should be raised higher than the roses to give any protection. Hmmm. Tall growing alliums that keep their leaves and stems all year, catmint on steroids? Mary...See More2017 your first Japanese Beetle
Comments (16)I am on an obsessive mission with them. Last year we took out all their faves and replaced them with "non-desirables". We had a big wisteria overhanging a pool deck that would be covered with them and then have to sweep JB poo off the deck - uh I don't think so... Took out all our raspberries, lots of wild grapevine. Well, they're back and just eating whatever we've left. Phlox, spirea, peonies, burning bush, daylilies ... yum yum! And my neighbors don't have them ?!...See Moremeredith_e Z7b, Piedmont of NC, 1000' elevation
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ingrid_vc so. CA zone 9