Showing posts with label bio. Show all posts
Showing posts with label bio. Show all posts

Wednesday, 3 April 2024

Aphis lugentis has invaded NZ

Look out for the senecio aphid Aphis lugentis. It's from North America & was detected in Australia in 2020 then in NZ in April 2023 (on #iNaturalist). It's big and black.

It eats on senecios which incl. exotic groundsels but also threatened endemic NZ species.

Yesterday I found senecio aphids on two plants in central Ōtautahi-Christchurch. So far I'm the only one to have recorded these from the South Island. There must be more out there.

#insects #aphids #biosecurity

https://inaturalist.nz/observations/205154304




The parasitoid (an organism that has young that develop on or within another organism (the host), eventually killing it) pictured here is Aphid Mummy Wasp.



Tuesday, 28 November 2023

predator nematodes

heard of nematoden?

they might save your plant some day.


http://e-nema.de/

good nematode



looks like a goodie.

the pink one
nicer than
the yellow (cruelly thin and the colour of bad chemistry)
  which it is about to take a bite of?

bad spider mite


they suck life out of the host

their webbings can end up in cannabis flowers as drammatically as this:

would be eaten by nematoden