R2103 plant disorders

There is always a question on plant disorders, which are caused by environmental factors. frost - a problem for non-hardy plants as water expands on freezing and bursts the cells. Frost affected plants have blackened and dead leaves, and can also show root heave, where the roots have lifted up. You can avoid frost problems… Continue reading R2103 plant disorders

R2103 Plant diseases

There are a few plant diseases you will need to be able to describe in the exam, and a few more where you will need to be able to write about their lifecycle. A disease is any kind of bad condition caused by a bacteria, virus or fungus. Grey mould (botrytis) This is very common,… Continue reading R2103 Plant diseases

R2103 Pests

I found this section of the exam pretty difficult. The thing I found most difficult was that in the exam they specifically ask you to draw a lifecycle diagram to help describe the lifecycle of a certain pest. Most of the diagrams do not appear in any of the textbooks, so I have created my… Continue reading R2103 Pests

R2103 Weeds and herbicides

Weeds are only a problem because they compete with the plants we want for light, food and water. They are defined as any plant growing in the wrong place, or which is unwanted. But I think we all know what is meant by a weed. They can also be hosts for diseases, which is not… Continue reading R2103 Weeds and herbicides

R2103 Maintaining plant health

Types of control There are different types of control you can use to manipulate the environment in which you grow your plants. In the exam, you can be asked about physical, cultural, chemical and biological controls. Physical controls = are just that - a physical barrier or some sort to stop something getting to your… Continue reading R2103 Maintaining plant health