Whiskers
It's a small world
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- 21 August 2007
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Thanks for that Whiskers,
I'll give triple ten a try, and study your fertilizer pamphlet.
Currently I use Phostrogen NPK:12.5:5.0:24.5 which is probably pretty close to the mark. perhaps It's time to grow tomatoes in other fresher soil where they haven't been before, but a bird problem prevents that.
I like to be able to view toms from the rear glass doors
Introduction
Root-knot nematodes (Meloidogyne spp.) are minute, worm-like animals which are very common in soil. They have a wide host range, causing problems in many annual and perennial crops. Tomatoes are among the most seriously affected, with the nematodes causing problems in all growing areas.
In this DPI&F Note, the biology and management of root-knot nematode is discussed. Although this information is specific for tomatoes, the principles can be applied to most other annual crops.
Symptoms and damage
Root-knot nematodes do not produce any specific above-ground symptoms. Affected plants have an unthrifty appearance and often show symptoms of stunting, wilting or chlorosis (yellowing). Symptoms are particularly severe when plants are infected soon after planting. More commonly, however, nematode populations do not build up until late in the season and plants grow normally until they reach maturity. They then begin to wilt and die back with flowering, fruit set and fruit development being reduced.
Below ground, the symptoms caused by root-knot nematodes are quite distinctive. Lumps or galls, ranging in size from 1 to 10 mm in diameter, develop all over the roots. In severe infestations, heavily galled roots may rot away, leaving a poor root system with a few large galls.
http://www2.dpi.qld.gov.au/horticulture/4855.html
nice post nioka...
down here in wet and coolish perth i have just planted about 40 seed potatoes for a september harvest....and some baby potatoes for that winter roast...i planted about 20 capsicum seedilings about 4 months ago and didnt realise how prolific they can produce...(can anyone tell me how easy it is to transplant these?) they are now slowing right down with the cool weather...brocolli in as well...corn crop missed the warm weather boat so i will be pulling them up this weekend...
i am still having trouble with my 60cm tall citrus that is dropping leaves and has leaves yellowing at the tip. i put epsom salt solution on about two weeks ago without any result so far...will try manganese or magnesium spray come spring and see if that has any effect....
Citrus have a very touchy trace element requirement. When I plant a citrus tree I put a piece of copper wire, a crushed jam tin and a few galvanised nails in the hole. A trick used in the days before trace element fertilisers. I give each tree a spoonfull of epsom salts yearly and plenty of poultry manure. Mulch well and sit back and wait for the fruit. Wtih mature trees you can put a copper nail and a galv roofing nail in the trunk..
i am still having trouble with my 60cm tall citrus that is dropping leaves and has leaves yellowing at the tip. i put epsom salt solution on about two weeks ago without any result so far...will try manganese or magnesium spray come spring and see if that has any effect....
cheers
Hi INORE
The capsicums will plant out from trays or pots and recover fine. Soak them in a seaweed water mix before you transplant will give them the best chance.
If they are in the ground and you want to move some, soak with seaweed mix, slash the tops off then transplant the stump with as much soil as you can. I often prune the bush right back and let it ratoon another crop. Some commercial growers just put the slasher over them to prune them back for another crop.
INORE, since this didn't rectify over the summer it is looking like a soil ph issue. Cool damp conditions can exasipate the problem. There are a couple of other nutrients that can also cause yellowing and stunting that may require adding something other than what the visual signs of deficiency suggest, ie what is causing the imbalance.
Can you give some detail of the soil, eg sand, sandy loam, clay loam, clay... and soil colour, white, grey, brown, red, black.
Any chance you have one of those home ph kits, and get a ph reading of the natural soil that hasn't been affected by lime or fert and another in the transplant hole?
Also do you know if it was a grafted citrus and what the rootstock was?
If you can remember how much lime and magnesium you have applied to it, that would be helpful also.
jono, I do sympathise. Spent most of my life in Christchurch , NZ where the ground was frozen solid through much of the winter. When I moved to Qld I thought, wonderful, I will be able to grow everything all year round.Hey all,
IT's getting a little depressing down here in the far south (Hobart) with the garden not doing much at the mo. I do have a nice raised bed facing north though set against the wall of our sunroom so this is growing some nice winter potatoes and lettuce spinach leeks etc. I actually have some tiny tim tomatoes and basil plants that are doing well inside the sunroom - makes for a little bit of joy seeing homegrown toms during winter down here
I'm jealous nioka - might move up that way when i retire
jono, I do sympathise. Spent most of my life in Christchurch , NZ where the ground was frozen solid through much of the winter. When I moved to Qld I thought, wonderful, I will be able to grow everything all year round.
Ah, wrong! The summer is much too hot for vegetables for the most part.
In autumn/winter, yes things grow quite well, but just when they are looking good along come all the pests and diseases you can imagine. I've had flourishing silverbeet one day and the next morning just a sliver of the stem remains. Ditto with basil. The bean fly will wipe out a crop of beans in a day.
Then your tomatoes will suffer from various fungal diseases.
I'd guess that where you are now at least in the growing season you can grow most vegetables without any trouble.
In summary, there advantages and disadvantages wherever you live.
Thanks whiskers. The capsicums are about 1 meter tall in ground. when i transplant, how much of the stem should be left? With the plants that i dont transplant, are you saying that they should get a good pruning at this time of year? and should i just harvest remaing capsicums before pruning?
Citrus.
i have test kit so will test. The surrounding soil is grey sand, but when i planted i dug a big hole and filled with landscape sand mix (from a soil place). citrus is grafted and i will get back to you with rootstock...
i do have the citrus in a reasonably 'light competitive location' (in between a hibiscus and a screenmaster bush) but would that effect the leaf drop?
cheers
I was brought up near Gayndah and also lived for a time near Bundaberg
Roland,
Having been brainwashed by my organic-lly bent missus; I might ask if you checked that the treated pine retainers are arsenic free ones at least? We are pretty much considered paranoid by our gardening friends but we took out all treated pine logs prior to starting a veggie patch. The treatment solution, whether arsenic based or not seeps out into the surrounding soil 20cm or so for at least 5 - 10 years and isn't really necessary for your diet let's just say.
Google it and try to screen out some of the more extremist views either way.
Cheers,
Kenny
Roland, the yellowing on the citrus leaves is sometimes due to magnesium deficiency. Try giving it Epsom Salts, about 2tbs to a bucket of water poured over the whole tree. If it doesn't cure the problem it won't hurt it.
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