Hi, We live near Baltimore. There is a small pine tree in our front yard. It kind of started to become brown(thought due to hot sun), but it was still lot alive. We also planted Rocket hybrid flowers beside it. We went for a vacation and by the time we came back, the tree is full brown, the Rocket hybrid started blooming, but the bugs started eating the leaves and also weirdest thing, it is climbing up on the walls. There are lots of them. on the ground and hanging on to the dead pine tree. It is carrying the leaf material and covered in it. Please help.

Snail case bagworms? If so would love specimens.

Yes, after some more research, found it to be bagworms. But, how can I eliminate them.

At full development size before turning into moths, chemicals are pretty useless for control. The best thing now is to handpick them and then straight into a container of hot soapy water. The female moth remains caterpillar-like and never leaves the bag. Don't ask the mating ritual (males fly) LOL. The female dies in the bags after laying eggs and larvae are protected until hatching next season.

Oh my God.. there are so many.. cannot hand pick them. Will check for local Garden helpers. Thanks Greg.

This leaflet from Perdue provides control measures that would be effective in your area https://extension.entm.purdue....

At least, the Arborvitae (probably) that they were eating is about the only thing I have seen them consume. Get that removed, plant something else in fall.

sallyg said:At least, the Arborvitae (probably) that they were eating is about the only thing I have seen them consume. Get that removed, plant something else in fall.

They have a very high host plant range, I've found them on these palnts:
1. Abies concolor- Concolor fir
2. Cedrus atlantica- Blue atlas cedar
3. Cercis canadensis-Eastern redbud
4. Chamaecyparis pisifera-False cypress
5. Diospyros-Persimmon
6. Gleditsia triacanthos-Honey locust
7. Hypericum-St. John's wort
8. Juniperus virginiana-Eastern red cedar
9. Liquidambar styraciflua-American sweetgum and Juniperus virginiana- Eastern red cedar
10. Malus 'Sutyzam' Sugar Tyme-Sugar Tyme crabapple
11. Malus-flowering crabapple (variety unknown)
12. Picea omorika 'Pendula Bruns' –Serbian spruce
13. Picea pungens –Blue spruce
14. Picea sp.-spruce
15. Pinus strobus –Eastern white pine
16. Pyracantha-Firethorn
17. Quercus bicolor - swamp white oak
18. Quercus macrocarpa- bur oak
19. Ribes aureum-golden currant
20. Robinia pseudoacacia- black locust
21. Rosa-Rose (domestic-cultivar unknown)
22. Taxodium distichum- Bald cypress
23. Tamarix-salt cedar
24. Thuja-Arborvitae

Thanks for the information Greg. (Must be arborvitae is the most commonly planted favorite of theirs in suburban landscaping around me )