So i also heard that large(fairly large) numbers of Bf.109s were lost in ground accidents, mainly due to undercarriage, did the longer tailwheel of the later g series solve this problem effectively?
longer tailwheel was for bomb clearance on rough fields, first there was a spacer for the regular tailwheel and then the longer tailwheel unit essentially for SC500 clearance, although in practise most only carried SC250 and FWs carried SC500.
The initial accident rate quoted for the Me-109 (up to 1942) wasn't any higher for field accidents on the runway, but the issue was that its overall accident rate was significantly higher
within one kilometre of the home airfield than for other fighters. Most people don't look that up, they only look up its field accident rate which isn't worse than others, overall however you get a different picture matching pilot reports. In ground handling it wasn't any worse than the Spit really, but it was a little unstable under 300km/h, had a long recovery from stalls (1500m minimum alt required IIRC, which meant on the landing cycle at 300-1000m it liked to plummet right into the ground if you stalled), and it was nose heavy in the landing condition, and liked to drop the right wing.
So it was more tricky low speed handling than actual field manners that was the cited issue...initially.
When the DB-605 was put in Seyringer says the basic airframe was too light for its torque and that was when accidents on the field itself rose, from about late 43 pilot-cadets who opened the throttle too quickly in the take off run often pancaked right on the field, and the cockpit was immediately crushed, killing the pilot. So the accident death rate at fields rose. He said it was much worse with the heavy interceptor configuration, too much anciliary weight on an airframe meant to be much lighter, with an engine that had too much torque for inexperienced pilots to handle. But if you had your wits about you it wasn't too bad, this was more a commentary that it had gone from a slightly tricky plane to handle at low speed, with a little tricky ground handling common to narrow track undercarriage in other types, but then became something that didn't tolerate fresh cadets very well. It remained very popular with experienced pilots however, one of JG54 gruppen switched back to it from Fw190A in 43, before the Dora was available.
Marsielle said that the secret of flying the 109 was learning to handle it at low speed, quoted in the wartime Beobachter (sp?) article on him.