grubs in my courgette plants!!

[Wendy]

Help! can anyone help me??? i have four lovely courgette plants which are growing some delicious courgettes, today i found three grubs that were going inside the stem and turning the stem into a foamy soggy thing with bubbly stuff, does anyone know what they could be??? they are about as big as woodlice, look a bit like a very large flea!!! i was so freaked out that i killed them straight away now i wish i had taken a photo of them............please someone help

[sewer rat]

Hard to say without photo but could it be froghoppers and the bubbly stuff be the cuckoo spit they produce ?

[shirlthegirl43]

Thought cuckoo spit was from horseflies and that it was just on the outside of the plant?

[pigletwillie]

Sounds like cuckoo spit, the flea type thing lives in the middle of it. Squashing them works but they dont do a huge amount of damage.