WHAT WILL THIS COURSE DO YOUR YOU?
Get the most out of your garden, nursery or gardening service. Learn about what pests and diseases plants may come in contact with, and how to control them.
If you want to know more about providing optimum care for plants, this course as an excellent foundation for learning to deal with any pest or disease problem.
There are 10 lessons in this course:
If you want to know more about providing optimum care for plants, this course as an excellent foundation for learning to deal with any pest or disease problem.
Learn how to control plant pests, diseases and other health problems for example:
A hole in the leaf may indicate damage by a bacteria or an insect. If you thought the problem was caused by an insect and sprayed it with an insecticide, but it was actually caused by a bacteria, then the spray is totally wasted.
Plants can get sick just as easily as people.
The problems they encounter can include:
PESTS - Animals of various sizes and forms.
DISEASES - Other living organisms (e.g. fungi, bacteria and virus).
ENVIRONMENTAL DISORDERS - Environmental factors (e.g. drainage, pollutants, weather).
NUTRITIONAL PROBLEMS - Too few, too many, or unavailable nutrients.
WEEDS - Undesirable plants creating problems for good plants.
MORE THAN ONE PROBLEM?
Often your plants can suffer from more than one problem. Different problems are interrelated, with one causing others to develop. For example, poor drainage may result in damage to a plant's roots. This in turn can result in reduced vigour, opening the plant up to attack from various pests and diseases. These pests and diseases may be obvious, but the damaged roots may not. The most important problem is called the "primary problem" and other problems which can occur as the plant weakens, are called "secondary" problems. When you look for a problem, always remember; you might be looking for several answers (not just one).
Student Comment: "I have found the course to be interesting and challenging, with great learning materials that really make you research the industry and get involved. It has been a great way to study because it has allowed me to work in the industry and study at the same time. I have found the online resources to be fantastic, the tutors feedback constructive and the fact that assignments can be submitted online makes the process so easy." Tom Wood, Australia - Diploma in Horticultural Science course.
At the end of this course, you should be able to look at a plant, and notice things that are tell tale symptoms of a problem. You will be able to understand something of that problem, and through that understanding be able to seek the right information to confirm, or complete a diagnosis or at the very least, make an informed judgement about how the plant should be managed in view of what you discover.
TELL TALE SYMPTOMS
There are certain things that are tell tale symptoms for many different, common problems. When you inspect a plant, look for these things.
1. Wilting
Insufficient water in the soil.
Too hot - Leaves drying out faster than the water can be taken up.
Something stopping water going up the stem (e.g. borer, disease, in lower part of plant) TAKE A CLOSER LOOK.
2. Yellow Leaves
IF OLDER LEAVES
Lack of nitrogen (feed with a nitrogen fertilizer).
Lack of nitrogen caused by wet soil ‑wet soil stops nitrogen being taken into the plant (improve drainage or cut watering).
Chemical damage. Over-spray from herbicides is the most common damage of this type.
Soil very dry. Often the edges (or margins) of the leaves will show signs of curling up or browning off.
IF YOUNGER LEAVES
Iron deficiency.
Other nutrient deficiency. Consider when the plant might have been mulched or fertilized last. Consider how rich or poor the soil looks (not just on the surface, but dig down a little). Consider if there are earthworms present or not.
Chemical damage. Consider what chemicals have been used in the vicinity; not just recently, but even decades ago. Consider if there is any builders debris about.
3. Look to see if the damage is distributed evenly over the plant. Is it:
On one side only.
On the top only.
On the most exposed parts.
.......... IS THERE A PATTERN?
4. Look to see if damage has only just happened - or did it occur some time ago?
The appearance of the growing tips tells you the current condition.
Young shoots indicate a healthy plant overcoming past problems.
Excessive side shoots lower down indicates disruption of hormone flow in the plant, or some other problem in the upper parts of the plant.
This course builds on Horticulture I and Horticulture II but may be taken as a standalone module if you have some general horticulture knowledge or learning. Graduates of this course will be well versed in all aspects of plant health to complement their plant knowledge and appreciation of general horticulture principles and practices.
If you complete this course you will be able to demonstrate a higher level of understanding of plant pest and disease problems through awareness of the biology of pest and disease cycles. This is imperative when setting up programs for prevention and control. The course is suited to people working in:
Enrol to boost your understanding of plant pests, diseases and disorders.
You can enrol at anytime and start the course when you are ready. Enrolments are accepted all year - students can commence study at any time. All study is self paced and ACS does not set assignment deadlines.
Please note that if a student is being assisted by someone else (e.g. an employer or government subsidy), the body offering the assistance may set deadlines. Students in such situations are advised to check with their sponsor prior to enrolling. The nominal duration of a course is approximately how long a course takes to complete. A course with a nominal duration of 100 hours is expected to take roughly 100 hours of study time to complete. However, this will vary from student to student. Short courses (eg. 100 hrs duration) should be completed within 12 months of enrolment. Certificates, Advanced Certificates and Awards (eg. over 500 hours duration) would normally be completed within 3 -5 years of enrolment. Additional fees may apply if a student requires an extended period to complete.
If a student cannot submit their assignments for 6 months to ACS, they should advise the school to avoid cancellation of their student
registration. Recommencement fees may apply.
Simply click on the ENROL OPTIONS button at the top of this screen and follow the prompts.
You can see the course price at the top of this page. Click 'enrolment options' to see any payment options available.
You can pay by Credit Card, PayPal, Afterpay or bank transfer.
Yes! We have payment plans for most courses. Click 'enrolment options' to see the available payment plans.
We also have Afterpay that will allow you to pay for your course or payment plans in four instalments (if you are in Australia).
There are no entry requirements that you need to meet to enrol in our courses, our courses are for everyone.
If you are under 18, we need written permission from your parent/ guardian for your enrolment to continue, we can arrange that after you have enrolled.
You don’t need to purchase any additional resources to complete our courses.
We aim to teach you the essentials without you having to purchase any specific computer program.
We recommend that you have access to a word processing program, such as Microsoft Word or Google Docs, so that you can easily complete and submit your assignments.
You sure can. We are here to help you learn whatever your abilities.
Yes, if you are enrolling in a Certificate or Advanced Certificate, you might be eligible for credits if you have evidence of your previous studies or relevant experience. More information is here.
We recommend that you are able to browse websites, send emails and conduct online research. You will need to be able to type and submit your assignments.
If you have limited computer skills, we can make special arrangements for you.
This is possible, it depends on the institution. We recommend that if you would like to use our courses that you contact the institution first. Our Course Handbook is a good resource for this.
Our courses are written in English and we only have English speaking academic staff. If you can read and complete your assignments in English, our courses are ideal for you.
Our courses are designed to build knowledge, hands on skills and industry connections to help prepare you to work in the area, running your own business, professional development or as a base for further study.
This course has been designed to cover the fundamentals of the topic. It will take around 100 hours to complete, which includes your course reading, assignment work, research, practical tasks, watching videos and anything else that is contained in the course. Our short courses are a great way to do some professional development or to learn a new skill.
It’s up to you. The study hours listed in the course are a rough guide, however if you were to study a short course (100 hours) at 10 hours per week, you could finish the course in 10 weeks (just an example). Our courses are self-paced, so you can work through the courses in your own time. We recommend that you wait for your tutor to mark and return your assignment before your start your next one, so you get the benefits of their feedback.
The course consists of course notes, videos, set tasks for your practical work, online quizzes, an assignment for each lesson (that you receive feedback from your tutor from) and ends in an exam (which is optional, if would like to receive the formal award at the end), using our custom built Learning Management System - Login.Training.
Our courses are designed for adults to gain professional development and skills to further their careers and start businesses.
Our custom online learning portal allows you to conduct your learning online. There may be practical tasks that you can do offline. You have the option of downloading your course notes or print them to read later.
There is also the option to pay an additional fee for printed course notes and or USB (availability limited to location and deliverability).
Yes, if you don’t have access to the internet, you can receive the course as paper notes or on a USB stick for an additional fee. We can also make alternative arrangements for you to send your assignments to us.
We offer printed notes for an additional fee. Also, you can request your course notes on a USB stick for an additional fee.
Yes, your tutor is here to help you. Simply post any questions you have in your login.training portal or contact the office and we can pass on a message to your tutor.
We are more learning focussed, rather than assessment focussed. You have online quizzes to test your learning, written assignments and can complete an exam at the end of the course (if you want to receive your certificate). You will not receive a pass/ fail on your course work. If you need to add more details on your assignment, we will ask you to resubmit and direct you where you need to focus. If you need help, you can ask your tutor for advice in the student room.
Each module (short course) is completed with one exam.
Exams are optional, however you must sit an exam if you would like to receive a formal award. You will need to find someone who can supervise that you are sitting the exams under exams conditions. There is an additional cost of $60 incl. GST for each exam.
More information is here
There are practical components built into the course that have been designed to be achieved by anyone, anywhere. If you are unable to complete a task for any reason, you can ask your tutor for an alternative.
When you complete the course work and the exam and you will be able receive your course certificate- a Statement of Attainment. Otherwise, you can receive a Letter of Completion.
You can bundle the short courses to create your own customised learning bundle, Certificates or Advanced Certificates. More information is on this page.
Yes, our courses are built to be applicable for people living anywhere in any situation. We provide the fundamentals, and each student can apply their own unique flair for their own interests, region and circumstances with the one-on-one guidance of a tutor. There is also a bit of student directed research involved.
Employers value candidates with industry skills, knowledge, practical skills and formal learning. Our courses arm you with all of these things to help prepare you for a job or start your own business. The longer you study the more you will learn.
ACS has an arrangement with OAMPS (formerly AMP) who can arrange Professional Indemnity from Australian and New Zealand graduates across all disciplines. Ph: 1800 222 012 or email acs@oamps.com.au.
ACS Distance Education have been educating people for over 40 years.
We are established and safe- we have been in education for over 40 years.
We are focused on developing innovative courses that are relevant to you now and what you will need to know in the future.
We are focused on helping you learn and make the most of your experience.
You can enrol at any time, you can work on your course when it suits you and at your own pace.
We are connected to many industry bodies and our staff participate in continuous improvement and learning activities to ensure that we are ahead of what learning is needed for the future.
Our courses are not accredited by the Australian Government. However many of our courses are recognised and held in high regard by many industry bodies.
Our courses are written by our staff, who all have many years experience and have qualifications in their speciality area. We have lots of academic staff who write and update our courses regularly.
Yes, you can do a request for a bulk enrolment and request an invoice on our Invoice Request Form
We can prepare an invoice, quote or proforma invoice. Simply complete your details on our Invoice Request form
We can arrange bulk discounts for your course enrolment, please get in touch with us to discuss your needs.
Yes, we have many students who are in locked facilities, such as prisons or hospitals. We can cater by also offering paper notes at an additional cost.
We can assist you to find the right course for your needs. Get in touch with us via email (admin@acs.edu.au) call on +61 7 5562 1088 or complete our course advice form.
Please get in touch with studentservices@acs.edu.au if you would like to be removed from our mail list.
If you would like ACS Distance Education to delete your information at any time (whether you are a customer or a prospective customer), please contact our privacy officer and we will process this ( admin@acs.edu.au ).
If students require a reproduction of their certificate, an electronic copy can be provided at a cost of AUD$35 incl GST. Printed copies are not available.
The following academics were involved in the development and/or updating of this course.

RHS Cert.Hort, Dip.Hort, M.Hort, Cert.Ed., Dip.Mgt. Over 30 years experience in business, education, management and horticulture. Former department head at a UK government vocational college. Yvonne has traveled widely within and beyond Europe, and has worked in many areas of horticulture from garden centres to horticultural therapy. She has served on industry committees and been actively involved with amateur garden clubs for decades.

Parks Manager, Nurseryman, Landscape Designer, Garden Writer and Consultant.
Over 40 years experience; working in Victoria, Queensland and the UK.
He is one of the most widely published garden writers in the world.

Over 30 years working in horticulture, as a gardener, propagator, landscape designer
, teacher and consultant. Adriana has spent much of her life living on large properties, developing and maintaining her own gardens, and living a semi self sufficient lifestyle. She has decades of practical experience growing her own fruit, vegetables and herbs, and making her own preserves. She is well connected with horticulture professionals across Australia, and amongst other things, for a period, looked after Australia's national collection of Thymus. Advanced Diploma in Horticulture, Advanced Certificate in Horticulture.
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