I know it's not a short term answer, but if you have a high population of predators or beneficial insects then you won't suffer major populations of pests with a little effort you can encourage the good guys into your garden
and leave that job to them. It's tempting to get out the spray but that can make the problem worse if you kill off your beneficial insects too.
For next season try and recruit your garden friends or pest patrol, lots of ideas here...http://www.twilightbarbiedolls.net/enco ... our-garden
Could you protect the next lot with fleece ?