Respect the Bugs

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When I wrote Marijuana Pest & Disease Control I developed a great appreciation for bugs and the other insects that enter our gardens. I began to admire their unique roles in nature. Most of the time we underestimate them and denigrate their skills of communication and adaption. All these creatures are survivors, no different than us, struggling [...]

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Grow Tip: Shall I Cut Or Let Them Stay II?

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Several people commented on my Grow Tip #46? Shall I Cut Or Let Them Stay? I advised the grower to consider harvesting early when facing cool, inclement or moist weather. Cory Moe said to cover them with a piece of plastic. Pot Smoker advised to shake the water off in the morning. Hubert Savage wrote [...]

ASK ED MARIJUANA GROW TIP #47: START AN AUTUMN GARDEN

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Q: I live in So-Cal. Is there any way I can start plants outdoors now? It is sunny and 70-80 degrees days and 50-60 degrees nights. A: Anywhere it is warm enough or in other areas using a greenhouse you can still grow. The major problem is that the long nights signal the plants to [...]

ASK ED MARIJUANA GROW TIP #46: SHOULD I CUT OR LET THEM STAY?

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Q. My plants are two weeks away from harvest outdoors but the weather reports say it will be cool and overcast/rainy for the next week. What should I do? A. Cut the plants. If you leave them up during the cool/overcast/rainy period the probability is that the buds will be attacked by botrytis (brown mold) [...]

ASK ED MARIJUANA GROW TIP #45: THE BOTRYTIS SOLUTION

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There was a slight attack of botrytis due to humid conditions and stagnant air—circulation was minimal with only passive ventilation during part of the day. We immediately went into protective mode—using Ed Rosenthal’s Zero ToleranceTM Herbal Fungicide diluted by 25%, and adding Serenade concentration at half the recommended dosage. Our reasoning was that the ERZT [...]

ASK ED MARIJUANA GROW TIP #44: SUPPORT YOUR COLAS

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The buds were too heavy and they were flopping over. As a result, they weren’t using the light efficiently and some buds were shading others. We decided to use YO-YO Plant Supports to hold the buds upright. Small nails were used to fasten the supports overhead to a crossbeam. Then we attached the small hook [...]

ASK ED MARIJUANA GROW TIP #43: DEALING WITH POWDERY MILDEW

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POWDERY MILDEW: As you can see from the first photograph below, my plants were suffering from powdery mildew. I sprayed the plants with a solution of Ed Rosenthal’s Zero Tolerance Fungicide diluted slightly with 1 quart of water to a gallon of the fungicide, and added an ounce of Serenade® concentrate to the mix. I used a [...]

ASK ED MARIJUANA GROW TIP #42: SPRING HAS SPRUNG

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In the San Francisco Bay Area dawn arrived today at 6:01 and dusk fell at 8:17pm. The total daylight period was 14 hours and 16 minutes long. In two weeks it will be a total of 14 hours and 48 minutes. For most hybrids, especially most Sativa-Indicas the dark period is not long enough to [...]

Ask Ed Marijuana Grow Tip #41: Spring Has Sprung

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Has spring sprung in your area? Do the evenings stay above 50 degrees and does it get up into the seventies during the day? If it does, you can start a spring crop. You’ll grow the plants vegetatively for a month or two, and then place them into flowering. The plants won’t be very large [...]