How Do I Register
Avogreen© registration is a requirement by Avocado New Zealand, so that you are able to export your fruit. This includes guidelines on spraying, which can not be carried out without a monitor to establish thresholds.
We can advise you on your requirements for export compliance (Avogreen©) and assist you with your registration.
Contact us and someone will come to see you to discuss your orchard or shadehouses and your pest monitoring requirements.
AvoGreen® Registration – 2021 Season
September / October 2020
(Please Register before 23rd October 2020)
You can either . . .
Register on the CropCheck Cloud, Login Via Website
Or . . .
Call into our Office . . . For Coffee and Cake
(Anytime but prior warning would be appreciated)
Or . . .
On request we can email or even snail mail you a registration pack for completion and return.
Any Questions please give us a call.
How Do I Register
Registration with Citrus NZ is not compulsory for citrus growers , but highly recommended so that industry related information is at your finger tips.
Because registration is not compulsory neither is pest monitoring, yet the reality is that citrus trees are affected by many of the same pests as avocados.
Monitoring your citrus orchard will always enable you to respond intelligently to the results of monitoring and spray accordingly.
Please note: CropCheck Ltd act in good faith to assist you to get your fruit to the market in the best condition possible, but have no control over on orchard management, or weather events that may affect the quality of fruit at harvest.
Register your interest in being monitored directly with CropCheck
Monitoring in Citrus is voluntary in New Zealand
Training for monitoring citrus was rolled out in the Bay of Plenty in the mid 20000’s, taught by Dr Keith Pyle. There were only three staff from Fruitfed’s Katikati branch trained initially, Cathy Harris being one of them.
The ten years that the voluntary programme was running allowed the industry to develop the most effective programme. The monitoring frequency started at weekly, changed to monthly, then back to fortnightly, where the best practice recommendation remains, having proved to be the most cost effective and best for control of pests on the orchard.
The original intent of monitoring was to reduce pest damage to fruit, therefore achieving a higher packout with better quality fruit, Now, AvoGreen© is also used as the major tool to gain access to overseas markets, with the AvoGreen© programme being the point of difference.
Q: Are there any thresholds for pests found on Citrus?
A: No thresholds have been set, which leaves the decision up to the grower as to whether to take action or not, and when any action needs to be taken. We can advise on the insect lifecyle, but not the sprays that should be applied. There are other more qualified advisers available to give that advice, for example Farmlands or advisers through Citrus New Zealand https://www.citrus.co.nz/.
Q: How often should I monitor my citrus?
A: There is no IPM programme in place for citrus at this stage. However monitoring is good when done regularly, to avoid pest and disease damage to the fruit and trees. From October to April, it is advisable to monitor 2 weekly, with 4 weekly monitoring from May till September. The major insects we are looking for that cause most damage, are:
Kelly’s citrus thrip
This insect does most of the damage at the end of flowering, mostly November/December. It is important to find the KCT just before petal drop, so the spray can be ready to go when full petal drop has occurred. Damage occurs possibly as early as when the flowers are starting to drop. Monitoring is recommended 2 weekly till spraying occurs.
Black citrus aphid
Black citrus aphid cause the new shoots on the trees to deform and can also be a minor cause of sooty mould. The BCA attract ants that love to ‘farm’ and ‘milk’ the aphid.
Citrus white fly
CWF was first seen in New Zealand in 2006 and has now become widely established in our citrus, causing severe sooty mould on both the fruit and the leaves. A predator ladybird, the Serangium maculigerum, was found by an entomologist in Auckland in 2005 and is now spreading throughout the northern areas of New Zealand. This ladybird predates on the Australian Citrus white fly, which is the variety that is established here. The time to monitor for CWF is from August to December, though they can be found most of the year.
Flower moth are usually found towards the end of flowering. A sign flower moth are present is the webbing in the flowers which is created by the caterpillar. The moths lay eggs in the flowers and on the tiny fruit, where the hatching larvae feed on the surface of the fruitlet, causing scarring which we call Rind Spot.
There are a number of varieties of Scale found on Citrus, some are more damaging than others, such as the Californian Red Scale, which can be found in high numbers on the fruit, causing indentation and high reject rates. These scale are tiny, so very hard to detect at the crawler stage. Scale hatch twice a year in New Zealand – August/September and January to March.
Greenhouse thrip are present between February and April/May, feeding on the surface of touching fruit, causing scarring on the fruit.
How Do I Register
You can contact us at CropCheck to register if you are interested in talking to us about monitoring your flowers. Targeted spraying is still more efficient and cost effective than blanket spraying.
Export Flowers, different from all food crops, are required to be insect free for export. This is achieved by spraying regularly and fumigating the flowers before they leave the property.
Many growers do not monitor because of the requirement to spray regularly, but there is also a concern about spraying when you do not know what to spray for. That is where monitoring comes in. Regular monitoring of the crops you are harvesting, will help you to identify any insects or diseases present, therefore allowing you to apply a softer, targeted spray. This is better for the ecology and your health.
Pests That May Affect Your Flower Crop Are:
2 spotted mite
This is a big problem in many flowers, particularly on Hydrangea and Viburnum. 2 spotted mite mostly occur in the hot, dry months of summer and will cause the leaves to become almost lace like if severely infested . In a major infestation, flowers will also be marked by the mites. Two spotted mite can be difficult to control, needing careful use of the correct spray as soon as the mites are seen. That’s where monitoring comes in, allowing you to detect the mites as soon as they are around, allowing you to get on top of them quickly. 2 weekly monitoring is recommended over the flowering period.
Aphids are one of the first insects seen on the flowers in Spring. They can cause some damage to the new shoots. Monitoring to find the Aphids needs to occur from August/September.
White fly can be seen all year round, but mostly over Spring and Summer. They lay their eggs on the underside of the leaves and could potentially cause some sooty mould.
The main caterpillars found are Looper and Leafroller. These can be found in most flowers, either in the leaves or flowers. Leucodendrum is a crop that can be targeted by Leafroller at any time of the year.
Flower thrip can do some significant damage to the petals on Tynus and Perris. Therefore monitoring is recommended over flowering time.