macro vertical view of a leafminer larva pocket

alberta between birch blotches brown bug canada caterpillar chemical closeup control damage destroy detail eating edge fecal feeding fenusa fly foliage frazz heterarthrus inner insect insecticide larva leaf leafminer macro miner nemoratu parasitoids patch pest pesticide pocket profenusa prune pusilla remove sawfly silhoutte spray surface thomsoni toxic wasps worm