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| This is a branch of my fruitless mulberry tree. What is going on here?
link to photo below
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Here is a link that might be useful: tree branch
Follow-Up Postings:
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- Posted by ken_adrian z5 (My Page) on Fri, Oct 28, 11 at 16:56
| scale i would use bayer systemic ... applied according to label .. AT THE RIGHT TIME OF YEAR.. which may not be now.. an alternative which i find impossible to use.. is horticultural oil sprayed w/in a 2 hour window of opportunity when the babes.. aka crawlers ... emerge in spring ... and i have never been able to hit that window of opportunity with success ... google scale on mulberry.. and choose your weapon .. good luck ken |
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| Thank you I'll check int that Bayer product. Brian |
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- Posted by ken_adrian z5 (My Page) on Sat, Oct 29, 11 at 9:48
| do insure that you find out about timing ... call bayer is necessary ... i think of trees.. come fall dormancy .. as pushing nutrients.. down to the root system ... sotring food for next spring, if you will .... i dont know if that is right ... so putting something in the soil.. and HOPING it will be sucked UP INTO the plant might not be right ... if the plant has no ability to 'use' the product.. before next spring... well.. then it is just pollution in my mind ... I THINK ... what is there now is dead.. or near dead... momma has laid her eggs under her impervious scale ... and there will be no living creature to kill ... until the crawlers come out in spring .... so dont waste your product ..nor pollute.. by using anything that does not accomplish something ... good luck ken ps: i put no stock in the sellers opinion of when proper application time is.. though you might find it real cheap here at season end.. just store it properly.. until its time to use it ... |
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| Bad boy, Ken! Horticultural oil is a great control for scale adults, eggs, AND crawlers. It coats the exoskeleton and clogs the spiracles (breathing apparatus) effectively smothering the scale. Dormant season spraying is highly recommended. |
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| I never seem to have trouble controlling scale with oil. For most scale the crawler window is usually 2-3 weeks. If scale is piled up on top of each other than you will not kill them all without several applications. I think people have trouble controlling scale with oil because they don't get proper coverage. As for Bayer: This is Imidacloprid and I am pretty sure it is not registered for fruit as a soil or trunk injection. It is a systemic and though it will kill most scale it will also get into the fruit of some trees, so you should not eat them. Imidacloprid will stay in the tree at least two years. |
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- Posted by ken_adrian z5 (My Page) on Mon, Nov 7, 11 at 17:05
| and that is because IPMAN and RHIZ are professionals.. who probably diary all this stuff.. and are out there with jewelers loops watching for the day the eggs hatch the crawlers ... I SAID ... "i have never been able to hit that window of opportunity with success ... " ... and as such.. rely on the systemic ... with tongue in cheek.. we are not all that perfect to remember to do these things at the precise moment in time ... anyway.. i expected the organic peeps to always argue about the chemical remedies ... and as such.. a poster gets both sides of said coin ... which is the point of any debate ken |
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| I didn't say anything about your use of Imidicloprid, but just tweaked your comment about horticultural oil. It's not only helpful in controlling scale but smothers the eggs of mites, aphids, and other critters that may be hiding out in the nooks and crannies of trees and shrubs. Honestly and truly, winter oil applications can slow down that cycle of pest occurrence enormously. The applicator must read and follow all directions using oil, though. Special care must be taken when using these products on conifers or broad leaf evergreens in the winter. Of course, I COULD have commented on the Bayer stuff....lol. I really, really hate to see it used on any plant that produce fruit that birds and other wild life eat, for example. Or flowers that attract bees, butterflies, and hummingbirds to feed on nectar and pollen. Nope, not really happy about that. ;-) |
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| As a pro.....I've used imidicloprid before it was even available on the general market. I also recommend hort Oils for scale for all the reasons already stated but also simply because I have found it is more effective! I'd also recommend dormant oil. |
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| Just wanted to add. Unlike contact poisons, the joy of oil is that it targets pests in ALL stages of development. Did you miss that in what rhizo said? No, you don't have to go out and check with a jeweler's loupe. You have a very broad window of application.....IOW......dormancy to apply it. It doesn't discriminiate on what stage a pest is in. It hits eggs, nypmhs, crawlers, adults, larvae and pupae. Now, imidicloprid will only be effective during the feeding stages and some pests do not feed as adults. I have not found imidicloprid to be all that effective on scale in a controlled g'house situation anyway. |
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