Too bad Canine Heritage is going out of the DNA testing business. I've had 4 mixed breed dogs tested by them, two of them also by Wisdom. Didn't send any pictures to either. Canine Heritage was quite accurate on all 4, whereas Wisdom faltered on both less than at least 50%.
The lettuce root aphid is a soil dweller that attacks lettuce roots in spring and summer, causing lettuce plants to wilt and occasionally die. In fall, this species often moves to poplar trees, where it overwinters in the egg stage and produces leaf galls in spring.
The lettuce aphid is a problem worldwide and has recently become problematic in the western United States and Canada (Liu and McCreight 2006; McCreight 2008). However, the first three species of aphids listed above are most economically damaging in Florida (Nuessly and Webb 2010). Although heavy aphid pressure can stunt plants, the major problem aphids cause is head contamination, which makes lettuce unmarketable.