Help! How can I kill scale without using more neem oil?
Vladimir (Zone 5b Massachusetts)
6 years ago
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Comments (31)Hi Mike, I haven’t checked in for a long while, but thought I’d respond... I grow my Meiwa kumquat in West windows, zone 7A (SE NY) in gritty mix - it never goes outside. Fertilize with Foliage Pro. For extra light on rainy days (lol, like this entire Fall ?) and in winter, I use a fish tank light hood with Zoo Med “Ultra Sun” bulbs and just lay it across the top of the pot, the leaves are uplit. The tree is ending its 3rd year in gritty mix. It’s time (likely past time?) to go from a 12” pot to a 14”. I came back today to research lighter weight soil options and maybe get some input about root pruning? Instead I discovered something called a New Zealand Lemon! Been indecisive about a 2nd citrus tree until now...but ordered a NZL from FW and fingers are crossed! My Meiwa is recovering from spider mites (so a little sparse) it was entirely insect -free until contaminated by a new plant (lesson learned) and lost its immature kumquats in late Spring. Treated with Castile soap and water sprays in the shower every few days and now, once a month as a preventative. It has about 20 new tiny kumquats on it...strange that it flowered that much since it’s the Fall...so we’ll see how they do through winter in the window...hopefully they‘ll be ready to eat in July! At night in winter I move the tree away from the window because it can get pretty cold in that spot, but the sunroom itself stays above 55 degrees - Mary (mandarin1)...See Morewill neem oil kill cottony cusion scale?
Comments (10)The labels of a couple of different products containing Neem oil lists scale as one of the targets that they will control, so if what you used lists scale on the lable it probably will control them. The rubbing alcohol sprays may sometimes work, if the scale saturates the scales protective cover, but often those sprays do more harm to plants then the target insect....See MoreHow far back can I cut these bushes without killing them?
Comments (7)You have essentially two ways to maintain this plant arrangement: as a single hedge, where all the shrubs grow together into a single mass ... or as single shrubs, where each is separate from the other. Regardless of which design you choose, the consistent aspect of shrub trimming is that the base is trimmed wider than the top, so that sunlight reaches the lower foliage and it continues to live. (Where the back faces the house, it will be cut straight and not matter as it will not be seen.) If the top is wider than the base -- as is seen in the shrub at the left side of your house -- then lower foliage will eventually begin to die off and the shrub will assume the form of a tree, as if it were on little stilts. (See this beginning in the shrub, second from right, in your original picture.) In an individual shrub, trimming in a ball shape would be incorrect because it undercuts the base, shading it by the top. A dome shape would be correct because the base is wider (or no less wide) than any portion above it. That said, most landscape designers do not use a series of dome shapes in a line anywhere near as much as they would use a hedge, which is simpler to look at and simpler to maintain. The series of balls is usually the result of a homeowner thinking it is cute and maintaining what would have otherwise been a hedge, in that arrangement. After deciding between a single hedge or 4 individual shrubs, one would next decide on how this is best maintained: through regular, tight clippings designating the outer limits of the foliage ... or through annual coppicing, where all trunks of the shrub are cut to the ground. They quickly regrow with the final result looking simultaneously thick and bushy, and loose and natural. The problem for you using coppicing here is that all stems (trunks) grow out in a relatively uniform length. If they ended up nearly reaching the window bottom, they would also be nearly reaching the door....See MoreHorticultural oil vs. neem oil
Comments (7)Thanks for the feedback, everyone! I'm sure the effects are also highly dependent on the strength of the emulsion. I will say this about horticultural oil, though... it doesn't cause post-spray stinkiness like neem does! I think I have a new go-to during the winter months when I have to co-exist with my trees indoors. I'll probably fall back to neem in the summer months. -Tom...See Moregardengal48 (PNW Z8/9)
6 years agoSilica
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6 years agoVladimir (Zone 5b Massachusetts)
6 years agohobbyartisan (Saskatoon, SK Canada, 2b)
6 years agoVladimir (Zone 5b Massachusetts) thanked hobbyartisan (Saskatoon, SK Canada, 2b)johnmerr
6 years agogardengal48 (PNW Z8/9)
6 years agoSilica
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6 years agoVladimir (Zone 5b Massachusetts)
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6 years agolast modified: 6 years agoMonyet
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6 years agolast modified: 6 years agoVladimir (Zone 5b Massachusetts) thanked myermike_1michamyermike_1micha
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hobbyartisan (Saskatoon, SK Canada, 2b)