Hortec logoiLeaf

iLEAF Weather Services

About Weather Services

Our weather services consist of an online software platform (iLeaf) from which users can view weather data and models based on measurements from our more than 1000 weather stations based in Southern Africa.
To meet the decision support requirements of modern day farming our app allows for the seamless integration of raw weather data, weather predictions, and models that can be viewed on a desktop, tablet or smartphone.
Our weather stations have GPRS technology and sends data in real-time to the cloud. Our stations are monitored daily for functionality to ensure a high quality data stream to the cloud.

Stratus Weather Station

Stratus 200

The all new Stratus 200 4G Weather station

iLeaf Models


- Frost Forecast 
- Spray Conditions 
- Live Data Monitoring 
- Station Data 
- Station comparison 
- Weather Models 
- Insects 
- Diseases  ...



Useful videos.

Weather Stations

Station Map

Click here to view a live map of current temperatures, rainfall and other parameters as measured by our stations.

Weather Stations

Weather Station

Our weather stations can measure temperature, humidity, rainfall, wind speed, wind direction and solar radiation. All our weather stations communicate through GPRS technology. Weather data is sent hourly to a central cloud server where the data is thoroughly checked by our quality system as in the examples below:

Weather Station Map

Weather Station Map

Temperature • Rainfall • Rainfall 24h • Rainfall 48h
• Relative Humidity • Wind Speed
• Fire Dry • Fire Wet • Frost


Click here for more information on the crops and models covered by iLeaf.

News Flash

We have joined the Mérieux NutriSciences group through their acquisition of 100% shareholding in Hortec


Some news and highlights from social media and more.

Detection and quantification of grey mould in blueberry blossoms using qPCR to verify the accuracy of a prediction model

S. McIntyre, M. van der Merwe, Cheryl Lennox, J. Meitz-Hopkins

Blueberry plant

iLeaf partnered with Manna

iLeaf has partnered with Manna Irrigation (by Rivulis) to provide accurate irrigation scheduling for your crops.

Manna is a leading provider of Irrigation Intelligence software solutions to growers around the world. We leverage our passion and decades of experience in remote sensing, agronomy, and irrigation into delivering advanced solutions to optimise irrigation in your field.

Contact Gerrit Moller 073 689 1295 for assistance

Improve water use efficiency with Manna Irrigation

Manna Irrigation

Cirrus 50 Weather Station 

Take control of your microclimate
This brand new High Quality affordable weather station includes:
- 4G Logger
- Solar Panel
- Sim
- aluminium pole

for R11 995

Made in South Africa

Gerhard de Kock
+27 (0)71 181 9882

Cirrus 50 Weather Station

Improved grey mould management on blueberries using the iLeaf-Botrytis-Blueberry-Model decision support system

J. Meitz-Hopkins, S. McIntyre, M. van der Merwe, C. Bowles, Cheryl Lennox.

A model-specific for South African conditions using hourly weather data was developed. The model was tested in 2020 in the Western Cape on two blueberry farms by comparing it to a standard calendar spray schedule and unsprayed control treatment in terms of the number of sprays scheduled per season and grey mould incidence on inflorescences of Eureka blueberry plants. The plants sprayed according to the iLeaf model needed similar or fewer sprays during the season ...

See our research >
Article on ISHS >
Crops and models >

What we do

The iLeaf weather station is a risk management tool that measures meteorological parameters in your microclimate. The iLeaf portal is accessible on your phone, tablet or computer. Various weather models are available and integrates with your CRI-Phytrisk to meet the decision-making requirements of modern day farming. The Hortec analytical laboratory provides food safety testing, including agrochemical residue analysis as well as microbiology and Water Analysis. Our intuitive online portal makes your decision around compliance easier with our national Logistics infrastructure. We ensure that your samples reach our laboratory fast, so that you get your results in time. Contact us to discuss your needs and see how we can provide you with a solution.

Weervoorspelling - somer 2023

Somer 2023
Kliek asb op een van die skakels hieronder om die langtermynweervoorspelling vir die 2023 somerseisoen te sien.

Somervoorspelling 2023

Hortec (Pty) Ltd joins the Mérieux NutriSciences group

Hortec is excited to announce that we have joined the Mérieux NutriSciences group through their acquisition of 100% shareholding in Hortec. Mérieux NutriSciences - South Africa

Station maintenance

Station maintenance ensures accurate readings

We are expecting high rainfall in the north of South Africa. To ensure that your station is in tiptop condition, please go through the PDF to make sure your station will measure accurately.

Station maintenance

Our own stations in Kruger National Park

View weather data from our own stations in Kruger National Park! Look out for the QR codes next to sighting boards in the park.
iLeaf stations are available at the following camps: Letaba, Lower Sabi, Mopani, Nwanetsi, Orpen, Pafuri, Pretoriuskop, Punda Maria, Berg-en-dal, Satara, Shingwedzi, Skukuza and Crocodile bridge.

Click here > Get the App

QR Codes in Kruger NP

Innovative Technology

New feature: import IrriCheck Irrigation data into the late blight model.


Contact Us 

Ask us about: Hortec, analytical laboratory, fruit research, pesticide testing, Pesticide Residue Analysis, agrochemicals, food safety, patulin, fruit quality management, maturity indexing, harvest windows, weather stations South Africa, weather data, weather stations, forecasting, disease models and iLeaf.

Contact Info

Unit D45, Olive Grove
Industrial Estate, 
5 Old Paardevlei Rd

Somerset West, 7130

+27 021 204 5509

Send us a message via Whatsapp. We usually get back to you within a few minutes.

Message us now

Downloads & Useful links

Download: Pesticide Residue Request Form, Food Safety Analysis Request Form, and find useful links.

© Copyright 2020 iLeaf - a division of Mérieux NutriSciences - All Rights Reserved