Why? Because I ask questions after taking people's advice here and the products recommended no working? Why can't you accept the truth? Why should people keep going out and buying one product after the other when none worked before? Your ignorance is really surprising since the nymphs of these insects cannot be "washed off" like bits of mud or leaf litter.
So non-toxic common soap kills them dead but no one knows this but a few people on Usenet? If soap killed silverleaf-whitefly and 2-spot spider mite dead, it would be well known all over the world by now. Thee two pests alone do millions of dollars worth of damage every year, both in the USA and SA. But no one but a few people here know soap kills them?
To use enough pressure to dislodge the nymphs of WF and SMs will itself damage the leaves, shred them if not knock them off the plants completely. So tell them..... how much soap is used per gallon? At sundown I used a new sprayer and sprayed the plants with 1 TBS per gallon soap and 1 TBS per gallon flour as per one of the people here. All the WF and SP should be dead and gone in the morning according to you. You claim the soap will kill them dead whereas the nothing else did. We'll see.
Soap is cheap. I soaked the plants completely, top and bottom of the all leaves the spray wand reached - right down to the ground.
farmers are losing millions of dollars a year to WF and SP by refusing to use Soap to kill them. Neem Oil is also supposed to kill them. Maybe I'll learn why they're not using that either but rather take great losses.
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