Insect and Disease ID Quiz

[Knowledgequest]

Good stuff, RBS.

The jelly fungus is a beaut.

I assume all these pics are relative to the season so I'll guess the cat is a Spring cankerworm. Shot o the prolegs would help otherwise.

 

[SMAdams]

Very close KQ, but this lil guy is a fall cankerworm. It has three pairs of prolegs instead of two like the spring cankerworm. Plus, spring cankerworm is usually a little more brown than the fall cankerworm, which is more green.

 

[SMAdams]

This one isn't a tree problem (well, a species of it can be), but with summer on it's way I have tomatoes on my mind. It's a photo of an heirloom tomato and then a photo of the fungal spores.

 

[Knowledgequest]

1st pic = tomato with the blight
2nd pic = spores of Alternaria solani

love this nerd stuff

 

[SMAdams]

[ QUOTE ]
1st pic = tomato with the blight
2nd pic = spores of Alternaria solani

love this nerd stuff

[/ QUOTE ]

That makes two of us. Ok, one last one before I leave work.

It's another tomato.

 

[Knowledgequest]

Well... We have seen early so lets go with late. I'll say its Phytophthora infestans since sp. sporangia are mostly lemon shaped.

 

[SMAdams]

KQ, you're correct again.

 

[SMAdams]

Here's a historically important canker disease.

 

[Knowledgequest]

I think i know it but will let others play.

 

[SMAdams]

Are you just saying that because you don't know what it is?

 

[Knowledgequest]

Okeedoke, how about Nectria galligena?

 

[SMAdams]

But there's no target.

 

[Knowledgequest]

Ok, lets try again.

Something historical and, apparently, not perennial.
Therefore, diffuse. How about Castanea dentata?

 

[SMAdams]

That would be the host.

 

[Knowledgequest]

Sry, trying to multitask...

Crypho nectria parasitica.

 

[SMAdams]

Correct!

 

[Knowledgequest]

ok, out of town for a week of work down south. Keepem guessing, RBS.

 

[guymayor]

owner reports entire tree turning dull green in late summer in '11 and '10, now turning in May. 2 maladies--leaf spotting and that discoloration at the leaf margins. Q falcata imo.

 

[guymayor]

not sure there are 2 foliage problems really.

 

[pcarborist]

anthracnose