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Tue, Aug 6, 13 at 1:14
| Can a nearby streetlight affect my tomatoes light cycle? If so do I need to cover them at night? |
Follow-Up Postings:
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| It is UNLIKELY. If nothing has happened so far, chances are that Street Light will not affect your plants, UNLESS it is right On top of your tomato plant and faced to it. |
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- Posted by cooperbailey 7MD (My Page) on Tue, Aug 6, 13 at 10:11
| Our back porch lights are on all night every night, and shine on part of the garden which is about 15 feet away. No discernable difference in the growth habits between the part of the garden which does not get the porchlight shine at night and the part that does. We live in the suburbs and the police have always said that lights are a big crime deterrent- has worked for 30 years for us knock on wood. so far our garden has stayed out of jail. sorry couldn't help it. |
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| The thing to consider is the INTENSITY of light. When you grow something under light, just a couple of inches away(or less), that light has intensity, mimicking natural sunlight. But a light from street lamp post or night lite on tour porch, by the time if hits a plant has very low intensity. Another factor is the component of that light, which is not the same as day light. I used to garden in a place where lights(similar to street lights) would kick in just around sunset. I never notice or thought any difference. At the best it was like moon light, at fool moon. |
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| The intensity of light drops of rapidly the further from the source that you are. (The inverse square law of light.) Typical street lights range from 35 to 250 watts. If at 1 yard from the light the intensity is 250 watts, at 2 yards, it is 1/4 strength or 62.5 Wats, at 3 yards 1/9 strength, or about 28 watts, 4 yards 1/16 = 16 watts, 5 yards 1/25 = 10 watts, etc, etc. So it is very unlikely that any street light will affect your tomatoes, even if you are using the lamp post as a stake. (LOL!) The inverse square law of light is used to measure distances to stars. (I took an astronomical physics class.) Betsy |
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| Not to go sideways, but back in the day I could get a charge of 0.1A from a full moon on my solar panels. |
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