Here's my take on it: In Jamaica the practice of mulching was widely used in the more successful fields we saw (right, Dave?) However, this was done after the plants had reached a pretty good height. This does seem to help protect the roots & plant even in the presence of high temps & they did produce. In the northern climes of IN paradoxically, I use black mulching to increase soil temps. This is put down however, when the fields are barren to help increase soil temps. Blossum drop at high temps most often occurs in my fields if I disturb the plant. I try to avoid picking on hot days because the sound of blossoms (future pods!) hitting the mulching like rain disturbs me :-) Avoiding plant abuse (& providing shade on smaller plots) lessens drop. I believe that in hot climes (especially those with high humidity) the practice of planting in full sun is detrimental. In Jamaica the most vigorous plants we saw were in a research agencys' inadvertantly created micro climate- grown outdoors under insect netting (to prevent viral spread) caused greatly diffused lighting. The chiles (Scotch Bonnet) in this netting were outstanding. Empirically, I've seen the same results- partial shade in high temps is a good thing. Hope this helps! -Jim C http://www.wildpepper.com