Is this in the greenhouse or out in the garden? biggest pest for this in the greenhouse is sciarid fly maggots or mushroom fly maggots, usually an indicator that you are keeping the compost too wet, out in the garden would be something more specific like leek moth larvae?
I found some advice on Narcissus bulb fly on the RHS site. Just google 'Narcissus bulb fly' and read the article - there isn't a pesticide available to the public, but there are things you can do. I hope it helps.
It should do Rosie, but the flies don't feed on plants the way that aphids do it should still get them from contact if not systemic and will kill the maggots, there are also biological controls like nematodes too
This is strange that those larvae don't eat big plant, or maybe they eat very little to have any noticeable effect on big plant. However, they eat any type of seeds and bulbs. Yesterday I saw them munching my Bird's eye chili seeds. They also ate the strawberry root >.< They also take a great interest on coriander sprout, feeding days and nights on the plant. I also have Anemone Coronaria. Everytime I stopped watering, the plant withered quickly and thus I have to keep the surface moist. Then comes the Sciarid Fly maggots dilemma. Any suggestion would be appreciated.
I was successful in reducing the number of this flies - still can't remember its name, and don't want to - The flies still very destructive to any flower bulb planting in the soil (actually compost). I found out that my white tuberous begonia (bulb) was a 'goner' by this morning Why are they so keen on eating flower bulb? All my freesia fell victim to them before this incident as well
vrgardens: Generally getting the back garden ready for winter. Lots to cut away and tidy up.
Oct 26, 2016 11:13:19 GMT
Geumlover: Autumn is the time to build the compost heap, or at least that's what the old books say.
Oct 29, 2016 19:56:34 GMT
robh: hi ian how are things your end yes if you have sonia id like when are you digging your tubers up this year
Nov 14, 2016 15:47:08 GMT
roofgardener: Good Luck to all Garden Friends as Storm Doris descends on us. Batten down the hatches, and keep safe everybody.
Feb 23, 2017 8:12:38 GMT
grindle: hope you don't get any flying greenhouses up there roofie
Feb 23, 2017 8:31:26 GMT
Rosie: I was thinking that too Grindle. We have snow...
Feb 23, 2017 10:28:34 GMT
supersid: could any one tell me what i am doing wrong with my hibiscus lisa bonita the leaves were nice shiney green now they are going white
Jun 2, 2017 15:11:37 GMT
Louise: Is anybody out there
Aug 5, 2018 6:34:42 GMT
Deleted: Oh well my books calling me for half the night
Sept 6, 2018 17:58:08 GMT
thecrackedpotgardener: this is the voice of the thecrackedpotgardener your are not alone i am watching you all mwhahahahahahahahaha
Sept 28, 2018 17:25:34 GMT
joysie21: Do anyone buy the gardeners world magazine as I want to enter competitions I have the gardeners answer magazine which is free with lloyds club account
Nov 5, 2018 9:19:29 GMT
libralady: Hello Bess, I have resurrected your post about using elderflowers. I will try the fizz but could you please send your recipes for the cordial and syrup. Thanks and regards.
Nov 21, 2018 18:03:23 GMT
joysie21: i get the garden answer mag every month with free flower seeds which i dont need do anyone want them fo swaps
May 30, 2019 20:20:20 GMT
gail: Hello everyone...Wendy, Joan, Corinne. Please let me know if you can see me now.
Aug 10, 2019 9:01:47 GMT
heikki: Hello Wendy and all group,I hope you find now
Aug 13, 2019 19:18:08 GMT
libralady: Put the last of the Cosmos in a vase this morning, then pulled the rain-battered plants out. They have been beautiful all summer.
Oct 2, 2019 12:14:37 GMT
daitheplant: Just to say that Moira (LadyM) passed away from cancer in August.
Oct 28, 2019 20:50:24 GMT
SueA: So sorry to hear that daitheplant, I've only just noticed your message & all of us send our condolences. Take care.
Nov 15, 2019 9:00:59 GMT