Typical commercial topping is at about half the plants showing an open blossom (defined as plant maturation date). The difference between a) topping when the blossoms first begin to form, and b) topping after full elongation of the stalk is that the leaf nodes spread farther apart by waiting. I give no thought to the tiny difference in consumption of plant resources.How far should you let flowers develop before topping?
That’s how I do it.I surrendered, and went ahead with spraying BT this evening. (forearm cramps for the next 24 hours) It looks like my rain for Saturday has been canceled, and rain on Sunday will be hit or miss.
I am always careless and sloppy with my BT spraying. I try to direct a mist of BT at several angles on each plant, but I'm not thorough with it. I never bother to spray the underside of leaves, since hornworms always eat full-thickness lamina. But every bed got its BT mist over a significant percentage of all the leaves. At least now, I will rest easy while the hornworms eat their holes.
I do carefully avoid having BT mist blow back onto me, and thoroughly wash my hands afterwards. The Bacillus thuringiensis bacterium is "harmless" to humans, sort of, pretty much. I don't wear contact lenses, but BT would probably turn a contaminated contact into a festering eye destroyer.
Bob
I topped the Tofta 28 JUN. I will wait for the upper leaf to show signs of maturity, then stalk-harvest, and hang the whole stalks in my shed. Since this is my first grow of Tofta, I'm just guessing about the best way to handle it.
Bob
I set up a spreadsheet containing each variety that I will be growing that season. I make certain to collect the statistics on each new variety, but I do not repeat the data for repeat varieties. I've been collecting the data for a little over a decade. I print the new spreadsheet, then hold it in a clipboard beside my favorite reading chair, so that I remember to keep it up to date. At the end of the season, I enter the hand-written data into the digital version. I now have similar data on each of the ~110 varieties that I've grown since 2010.Do you run the same statistics on all your plants? Every year?
I set up a spreadsheet containing each variety that I will be growing that season. I make certain to collect the statistics on each new variety, but I do not repeat the data for repeat varieties. I've been collecting the data for a little over a decade. I print the new spreadsheet, then hold it in a clipboard beside my favorite reading chair, so that I remember to keep it up to date. At the end of the season, I enter the hand-written data into the digital version. I now have similar data on each of the ~110 varieties that I've grown since 2010.
If you are interested, I can provide a link to download the empty spreadsheet form in open document (.ods) format.
Bob
Download Plant Variety Data form as open document spreadsheet (.ods), in .zip folder. After downloading, you will need to unzip it.
This empty form contains my Tofta data from 2023 as an example of the form's use. You can delete that data. Add new columns if needed, if you grow more varieties in a single season than the form will fit. (My wildest year, 2014, the form contained 43 columns.)
After unzipping, change the file name from "Tobacco_PlantVarietyData_EMPTY" to "Tobacco_PlantVarietyData_2024" etc. Within the form, set the displayed year manually. The form automatically saves the current date and time each time you save the file.
Bob
EDIT: I also use the form in early winter to plan how many cells in how many trays I will need to set up for the upcoming season.
I topped the Tofta 28 JUN. I will wait for the upper leaf to show signs of maturity, then stalk-harvest, and hang the whole stalks in my shed. Since this is my first grow of Tofta, I'm just guessing about the best way to handle it.
Bob
We discuss any variety of tobacco, as well as numerous approaches to growing, harvesting, curing, and finishing your crop. Our members will attempt to provide experience-based answers to your questions.