Archive for December, 2006

Help! My Grape vine is under attack!

The past few 5 weeks, I have answered almost 450 emails! And most of them were about training the grape vine, pruning the grape vine, what varieties to use and many more. But let me tell you of some the real attack you must be looking out for!

How can you, the home grape grower, put [...]

What to look for when buying a grape vine from your nursery

The are basically two “types” of grape vines you can buy from you nursery and they are grafted and non-grafted vines. The grafted vines has a rootstock from another variety and there are a few reason why breeders do that.
There are a few Vitus Riparia and Vitus Labruska cultivars (with really ugly grapes, if any [...]

Photosynthesis – Why your grape vine needs enough sunlight

You probably know what photosynthesis is, but do you know what really happens inside the grape vine during photosynthesis and why it is so important to expose your vine to enough sunlight?
Photosynthesis is one of the most important physiological processes that take place inside the vine. During photosynthesis, the energy for the salvation of the [...]

The effect Gibberellins (Gib) have on a Sultana berry

On 29 November I shared with you the methods I use to cultivate top Sultana Grapes.

Here is a picture to show the effect Gibberellins (Gib) has a Sultana Berry!

Numbers in above picture:

shows you how the gib has stretched the berries - see that little dimple at the bottom of the berry? - they are gonna [...]

Downy Mildew - experiment

Hello everyone,

I did an experiment yesterday to show you how devastating downy mildew can be.
Look at these pictures:
Picture taken 19h30 yesterday
Here you can see an “oily” yellow patch on the top side of the leaf. This is the first signs of downy mildew.

Bottom of the leaf - if you look close enough you will see [...]