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Bulb mite control
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The Pest | |
The bulb mite Rhizoglyphus robini can cause serious damage in crops such as lily, freesia, amaryllis etc …. This mite is making tunnels and holes in bulb, tubers, corms … which can result in distorted bulbs. These damages often get infected by bacteria or fungi, which can cause the bulbs to rot and fail to produce new growth. This damage can happen during storage or during the cropping.
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Biological Controls | | » HYPOSURE (a) Hypoaspis aculeifer in units of 10,000 or 25,000 | | | | |
HYPOSURE (a)
| | Hypoaspis aculeifer is a brown coloured predatory mite. It is soil dwelling and naturally inhabits the top layer of the soil/compost but it tend to go deeper than Hypoaspis miles. This mite feeds on bulb mites, sciarid fly larvae, thrips pupae and other invertebrates present in the soil/compost such as springtails. Hypoaspis aculeifer can be used to control bulb mites in the storage of bulbs or during the crop.
Trials have shown that Hypoaspis can live for several weeks without the presence of food and with a food source adults remain active for 4 to 5 months. The life cycle from egg to adult takes approximately 40 days at 15°C, 16 days at 22°C and 12 days at 28°C. They stop laying eggs below 12°C. Optimun temperature range is between 15°C and 30°C. Hypoaspis larvae and adults all feed on all stages of the bulb mite. It can eat as many as 10 – 20 bulb mites a day. Hypoaspis should be sprinkled over the compost and introduced as early as possible in the life of the crop. Directions for Use | 
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