as to solution in my opinion i see 3 significant statements posted earlier :
from lowsuv :
The real solution to tire failures is to UPGRADE TO A HIGHER WEIGHT RATING in pounds as shown on the sidewall of every tire .
The BRAND IS NOT AS SIGNIFICANT unless you pay for the best brands which are repeatedly Michelin , Continental , Bridegstone etc.
from GMWPHOTOS :
My searching has found numerous LT tires that will "fit" these smaller trailers. A short list would include:
Contiental Vanco 2 ( USA )
185R-14C
195/70R-15C
215/70R-15C
225/70R-15
All the above in load indexes from 100-110 (1764 lbs-2337 lbs )
In Canada, all of the above, plus also the Vanco 8
184-14
195/70R-15C
225/70R-15C
Yokohama Y356
in 14", both LRC and LRD
in 15" LRD
Kumho
in 14", three different sizes, LRD
Nexen ( new kid on the block....kind of an unknown ??? )
14"LRC and LRD
15" LRD
from FAST EAGLE:
Adding to the list;
Michelin Agilis - 14" - 16" sizes
Hankook RA08 series
Power King Ranger series
Michelin ref
Hankook ref
Power King ref
With the internet search function and frequent visits to the tire rack website to find weight loadings it is possible to find a tire that will improve your chances when towing across the desert in 115 degree heat .