Jeff, wow, your tree surely has quite a few flowers.
I don't know the reason, but I notice leaf drop (sometimes) when citrus blooms. I often wonder if this is a lack of nitrogen or a mineral definciency.

Sounds like the tree is being handled properly..How about the soil? Are you allowing it to dry between waterings? Have you checked for insects?
Sun and humidity are sufficient..what about air circulation? Toni

My Washington Navel is blooming now, but nowhere near 100.

Is the leaf abscission occuring at the junction of the petiole and the stem, or at the junction of the petiole and the leaf? The former is more of a normal leaf abscission. The latter indicates leaf loss from some stress. SB

Seven weeks seems like a sufficient amount of time for the leaves to acclimate to it's current conditions(light and temps).Is it possible that the humidity is on the low side? 40-50% is consistent? It may drop even lower when the heat comes on in the room. I know when my humidity got lower than 50% the leaves of my trees started to show wilt. Make sure you are as far away as possible from the heat source of the room. Maybe a humidifier would help?

Chops, that's one problem growing tropicals indoors: lack of humidity. 40% is decent but 70% is a lot better..then again, it's difficult for us who live in cold climates keeping humidity at that level..I've got 2 humidifers and 2 indoor fountains, yet, when my standard humidifer isn't running properly the humidity drops. I've 3 hygrometers and watch the needle drop from 50% to 40%. Soemtimes lower..and it makes a differnence on looks of plants.
Sometimes I'll boil water on the stove until windows steam up. LOL..and daily misting, sometimes 2-3 times per day. When the humidity is consistent, and I mist, some plants hold little dew drops on tips of leaves..that's when I know my humidifer is doing its job..Toni

The leaves are leaving the stem on the branch. I just noticed that the very nwest young leaves have a sticky clear drops on them. Not all just a couple of new ones. I can't find any insects. I looked under a magnifying glass and found nothing. Any ideas?

Jeff, I think that your leaf abscission pattern is abnormal. What you describe sounds like honeydew, generally due to whiteflies, aphids, mealybugs, etc. You are right to check for infestations. Double check, just to be safe.

I am a novice relative to others on this board, but other causes might include nutrient deficiency, salt buildup, and over/underwatering. What is the condition of your growing medium? Is it freely draining, or could the medium have become compacted, predisposing to root rot? Have you flushed the soil? SB

SB I repotted in Sept using CHC and the soil is free draining. I don't water that often, maybe every 3 weeks. Maybe next watering I'll give it a good flush. Like I said the tree looks great, but I have lost all the interior leaves, probably 30% of the leaves. I'm afraid that the tree will never look the same. PS Do the leaves grow back where they fell off.

I think with 40% humidity and watering every three weeks in CHC's the poor thing is dying of thirst!
The excess flowering is a sign of stress - although that can be many different causes.
I would give it a good soaking by standing in a pot of water for several hours and then allowing excess to drain away.

Citrange The moisture meter still says soil has sufficient water. I'm more afraid of over watering than underwatering, but I will give it a good soaking Thanks

I agree with Citrange. I repotted to CHC/peat/compost (3:1:1) in September as well, and I've found that the CHC behaves differently. I've had to adjust my watering schedule and I'm still learning. So far, I've concluded that 1) it's hard to overwater CHC, that's how freely it drains; 2) at times I have to water a little more often; 3) if the CHC dries out, it might take a thorough soaking to "rehydrate" the medium; 4) you have to watch the fert, as nutrient deficiencies can sneak up on you quickly with CHC, particularly nitrogen deficiency.

Mine are in the greenhouse at 70-80% humidity and my trees start wilting after about 7 days, so I've been watering about every 7-10 days. SB

Jeff, if it's honeydew the main culpret is Scale bug..inspect again and again. Only when they're older are they easy to spot. They form armor-like shells and then remain in one area..usually under leaves, on stems..

The times I've seen droplets of liquid on my plants were when the house was really humid, and I had misted..water droplets would reamin on the leaves a couple hours.

Since I don't use CHC's I don't know the best way to water. I'd imagine, of what I read in past posts, setting the pot in buckets of water, let sit until water reaches the top of medium.

Do you have a water guage? Perhaps you can test w/a guage??? Or just lifting the pot to check its weight. Most ppl overwater but plants die from being underwatered too. You need to find the best method while using these husks. Toni

Jeff,
Citrange is right in that it sounds like underwatering. It is difficult to overwater the right blend of CHC's. Try a humidifier and misting. With a decent humidifier it will be easy to keep the humidity around 70%. Try soaking the mix and watering a little more often as suggested.

As for the sticky drops- not sure. I had/have a problem with mealys, whitefly and mites and have also found sticky clear drops, so they may be related.

Chops did you rid those bugs? If so, how and what did you use? Did you see honeydew or dew drops when you had these pests? That must have been some battle trying to rid not one but 3 types of pests!! Toni