Theorem of the Day: Use home made neem spray within 4-6 hours
This translates into make a single batch and use it right away.
My observations (twice - before and after my vacation):
First spraying after the spider mites were bad was very effective,
Second and third spraying I felt good,
By Fourth through sixth spraying I was having major doubts,
yet hope lingered because it had really worked for a bit.
So I decided to take a chance.
Setting: One half hour before lights off outside the basement cannabis grow rooms
Enter gardener with a freshly brewed bottle of Neem Foliar Spray
(The Gardener knows the 1/2 liter foliar spray made up two weeks ago has gone bad.
It is, at most, a week soil drench.)
The Gardener drenches the soil below the second worst affected plant.
Spraying about 1/4 liter foliar in a drench with a punp style sprayer purchase for $14 at the Hardware Store on their way home from Anticoagulant Clinic.
All plants in the Garden Room and the 4 plants in the Flower Room are moist.
The Gardener drenches the soil below the worst affected plant in the flower room.
According to today's theory (gleaned from 3 internet entries,) it can't make it worse.
The Gardener's Neem Oil Foliar Spray Recipe
- Glass (Pyrex) liquid measuring pitcher,
- 1/2 liter warm water,
- 5 ml(1%) Neem Oil,
- enough soap to make bubbles when whipped with a whisk.
- 1/2 liter warm water (yes, a second 1/2 liter of warm water.)
Combine in the order listed,
Whisk ingedients in glass measuring pitcher, adding just enough soap to make bubbles
When mixture is well mixed, combine with the second 1/2 liter of warm water in the sprayer bottle.
Shake well.
Use mix in less than 6 hours (basically right away - use it all for something.)
This has the potential to be an effective new method
New (hudson style) pump sprayer
Garden Room after a misty foliar spray