Unanswered Questions

1,877 questions with no upvoted or accepted answers
9
votes
4answers
19k views

What is this 3cm green caterpillar from northern California?

We have a number of these caterpillars in the yard. They are about 3 cm long. This is on the peninsula south of San Francisco, CA, USA. I initially thought of geometer moths but it seems to have ...
8
votes
1answer
388 views

Tree identification

Can anyone say with certainty what this species of tree this is, found in Northern Michigan? The pic was taken today. Thank you in advance.
7
votes
1answer
165 views
7
votes
1answer
306 views

Pinus sylvestris yellowing problem

I'm pretty new to gardening and I recently (~2 weeks ago) got a Pinus sylvestris 'Fastigiata' plant and I noticed that some needles started to yellow. Here are a few pics:- The yellowing is mostly on ...
7
votes
2answers
1k views

How to get rid of mynah birds?

Mynah birds have taken over my garden, displacing the natural avian fauna. I would like to get rid of them, but my being in Australia means that I can't buy a gun. Any alternative suggestions on how ...
6
votes
1answer
56 views

Chilli Plant Leave Tips

My chilli plant is growing however the tips of the leaves are drying, any suggestions ? Is this normal ?
6
votes
1answer
328 views

Kentia Palm problem

My leave and stalk of my Kentia Palm has few problem Please help !
6
votes
0answers
265 views

Cactus shoots drooping and turning olive

Hey Gardening & Landscaping SE, happy to be a new member! I am concerned for my cactus shoots and hope you are willing to help me out. Short version: My 3,5 months old cactus shoots are starting ...
6
votes
0answers
108 views

Identifying/operating an automatic watering system

I recently bought a house built circa 1970 in France, and it came with an automatic watering system (date of setup unknown, so any time between then and now), controlled by this: I've been unable to ...
6
votes
2answers
7k views

White and brown spots on cacti

I've been away for the last two and a half weeks, and upon return I noticed a few of my cacti had developed white fuzzy spots, which were not there before. In the worst instance, one cactus appears ...
6
votes
1answer
182 views

What are these white with black caterpillars eating Petunias in Albuquerque, New Mexico?

I'm visiting grandparents in Albuquerque, New Mexico and am trying to help perk up some of their potted and hanging potted plants. It doesn't take long for plants to dwindle in this area (dry and hot ...
6
votes
2answers
360 views

Browning arborvitaes — why?

I have about 20 arborvitae trees along my driveway and all are browning. I'm a new homeowner and do not know the trees' history. What sort of issue do the below pictures exhibit? Thanks. I am in Long ...
6
votes
0answers
112 views

Is the Atherton Raspberry known to hybridize with other Rubus species?

Is Rubus probus (the Atherton Raspberry) known to hybridize with other Rubus species? It sounds like it would be pretty awesome in breeding programs.
6
votes
0answers
185 views

What are these fragile green plants with small yellow blooms in Santa Fe?

We are having cold Winter temperatures below 10 °F at night and I find a thick patch of these fragile green plants, some with small yellow blooms, all in a part of the yard that we do not water. ...
6
votes
1answer
319 views

What caused this red spot on my Haworthia plant?

My Haworthia plant has this strange red spot. I'm not sure what it is - is my plant okay?

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