Scientists are fighting a longer mosquito season with ... more mosquitoes

Nearly half a million more of the insects are being released in California - they're all male and carry a bacterium

The box arrived in the San Gabriel Valley, just east of Los Angeles, filled with more than two dozen paper tubes about the size of toilet paper rolls.

All 25 tubes are here," said Tristan Hallum, who oversees scientific programs for the San Gabriel Valley mosquito and vector control district.