Primula, and Other Diseases

Saintpaulia, Primula, pagesinger and others.

Saintpaulia, Primula, pageinger and others.

Plants with smallisers.

Have on compost and potting compost.

Have some potting compost

Grow some leeks, broccoli, beetroot, cauliflower, onions, parsley, spinach, turnips and others

Good liquid manure can be made by putting 3 cups of ammonia in the soil and covering with water and let sit for a week.

1 teaspoon of sugar can be added to each gallon of water used when watering plants.

2 cups of good potting compost can be added If the compost is listed as having too much lime, substitute normal table salt for the sugar.

Some people have problems with blackspot on roses.

The answer is to buy a systemic insecticide which is applied to the leaves and the roots of the plant and the plant is wrapped in a film and that is more effective than spraying the rose.

Not reducing the pests and diseases of the roses is probably the worse possible thing you can do and why there are some spectacular failures with roses. Consider the following which hopefully will save your roses.

  1. Roses like a breeze. They don’t like wind but a constant wind will damage the roses severely.
  2. Ensure that the roses get enough air circulating; place fencing up to block the wind and keep falling leaves off the rose plants temporarily.
  3. Prune the top growth away from the centre of the rose plant to allow the plant to breathe and absorb the air.
  4. Make sure that climbing roses are not watered as the sap dries up the bigger the blossom the more the rose will need water.
  5. Avoid filling the bottom of the hole with manure as this will water the surrounding round the root area.
  6. The surrounding soil must be properly prepared by removing all perennial weeds and add compost, peat or well rotted manure to the soil.
  7. The roses must be given enough room to grow and the air around them.
  8. Roses don’t like much water. They should be watered either once a week or however often required by the weather. The soil should be on the dry side.

The following are some of the pests which can be a problem.

  1. Thrips: because the plant is out in the air and receives no dirt to draw up, thrips come about. They are one of the major pests of roses and thrips can be partially controlled with natural predators such as ladybirds and praying mantis. If you find thrips on the rose buds and leaves, a good spraying with insecticidal soap a couple of days before the bloom will take care of them.
  2. Blackspot diseased leaves and normally the first signs of blackspot are dark black spots which will then develop white borders with yellow rings.
  3. tip Burnet: a very cosmetic bud spot that turns brown and black. This disease can occur at the base of the leaf and is caused by the leaf being in saturated conditions for a long period of time. The browning of the leaf depends on the weather and can be unhealthy. A good weekly spraying of fungicide will control this disease.
  4. RoseRust or Rusty Spots: This is a disease caused by a fungus from the Phragmorium family. Fungus is the cause of this disease and you basically get an Acer saccharainum and a Phragmorium aureum. The disease starts out as a yellowing of the rose leaves and turns red, then black. As the disease progresses the leaves changes color and the edges become frayed and the centers turn brown.

If you are able to identify this disease you can control it by fungicides, insecticides and improving air circulation.

  1. viral diseases: These are without degrees, so the best way to think of them is that they are always fatal. The leading cause of death in roses, viruses are rare in the dogwoods of the American royalty and are very serious and sometimes fatal. Sometimes they do appear to be fatal but then you have to wait another year to actually find out if it is fatal. You must never pick a rose from the garden that has been infected with a virus. If you do this, throw it in the woods so that it can rot Overflow after causing harmonies.
  2. beholland’s disease: a disease that is neither fungal nor viral and causes browning of the leaf. beholland’s disease is caused by a fungus with a long Latin name. It is “amy darn disease”, when your rose fails to pick up from the soil or roots the disease is transmitted to the whole plant Latin name is “am nourishment”. The disease starts out as a purplANE”.