What's plaguing jrhs tomato and pepper plants?

Whiteflies are gone, but now there is another insect flying in theJRHS Greenhouse.  Are they the reason our tomatoes and peppers look....well, unhealthy? Or are they attacking already diseased plants?

After planting

Thanks to my helper, romaine lettuce, bunching onions and chives are finally planted in the JRHS garden.

Before planting

Lettuce survived outside last night despite the frigid air . JRHS's Haden gardens provide a microclimate where tender plants are protected.

Bunching onions and lettuce in#jrhsgarden

JRHS greenhouse plants

They're baaaaaaaaaack! Greenhouse whiteflies are back in business. They are attacking our peppers and tomatoes!