I love it when actual spiders make a home in with my plants. I feed my plants anyways so what the spiders catch is great for them. Love to see anything living co existing and using plants as homes . Spider mites can be wiped off the face of the earth for all I care though.
This post was from 2006, so I thought I'd re-post it. I just made a batch this morning. Warm up before use to suspend the Neem. I store it cool. Mealy bugs on the lithops again *&^E#*#!
Here's Al Bickell's recipe:
1 litre water 2-3 cc Neem oil few drops of Eucalyptus oil (for red-spider mite) 1 tbsp light mineral oil 5-6 drops dishwater detergent
Shake vigorously to suspend oils. Keep in fridge to keep fresh. Must be room temperature to keep Neem oil liquid. For scale use double the Neem concentration.
In my experience the normal strength is fine on Mexican pings and larger Sarracenia. The higher strength is toxic to VFT's and small Sarracenia but they do bounce back. I have never tried it on utrics. Sundews do not like it and I would be careful trying it on them.
Alcohols will suck the water out of the plants and denature the tissues. You would only use alcohol on a spot by spot basis for scale. Even for scale you might want to use mechanical methods to loosen the scale and then vigorous washing and maybe the Neem recipe. CP's tend to be very sensitive. Alcohol will kill anything with delicate tissues such as dews, VFT's and many neps. Alcohol is great for tough plants like succulents-when my succulents get mealies, I wash all the soil off and dunk them in pure isopropranol. I once used alcohol on some neps with scale and killed half the plants.
An interesting article that proves ballooning spiders can fly hundreds of miles through the atmosphere with little to no wind.
It seems they can elevate themselves into the air by utilizing naturally occurring electrical fields.
In a controlled lab experiment, with no breeze present, scientists found that certain spiders could first sense the presence of electrical fields and then utilize those fields along with strands of their silk to lift themselves up into the air.
When the fields were turned off, the spiders descended back to ground again.
What is interesting here, is that it has been speculated that those pesky spider mites might also be able to use the very same fields to travel around to our prized plants.
It's been commonly believed that the way to dampen those mite's spirits was to have air movement in our collection along with moderate misting at regular intervals.
That would make sense beause a running fan would blow them around with little control to where they might land when airborne and misting would disrupt the dry arid conditions that they tend to thrive in...
...putting a damper on the static electricity that allows them to become airborne in the first place.
dvg: Sarra's safe inside
Mar 31, 2019 20:40:58 GMT -5
bonfield: I've decided to finally reveal my best-kept secret for growing healthy Neps: Just spit on them every few days, the enzymes in saliva help them to better absorb the fertilizer I spray them with!
Apr 1, 2019 14:24:31 GMT -5
dvg: Salivating up your drools?
Apr 1, 2019 16:30:07 GMT -5
dvg: Duped again on April Fool's!
Apr 1, 2019 16:30:45 GMT -5