Pyrethrum is an effective insecticide with low toxicity to humans, but it is rapidly destroyed by ultraviolet light.
Tuta absoluta, an increasingly important pest of tomato crops in southern Europe, is extremely damaging and currently controlled by intensive chemical pesticide applications. But such products would not be compatible with biological control agents.
The ability to schedule the growth and flowering of greenhouse crops is important to growers. In the experiments reported here, 18 different bedding plants were raised from seed.
One of the horticultural successes of recent years has been the production of fresh-cut lettuce leaves.
Reducing the cost of hand-thinning apples continues to be a priority for the industry.
Formaldehyde is often a contaminant of the air within new homes and it is undoubtedly one cause of "sick-building syndrome".
Severe problems have been caused in recent times by Trichoderma aggressivum yet the reasons for the outbreaks have not been established.
Herbs and spices, as well as being important for flavouring and preserving foods, are also key sources of traditional medicines. Despite this, there have apparently been few experiments to compare the effectiveness of different drying and extraction procedures.
Red band needle blight (RBNB) is a devastating foliar disease of a wide range of pine species. The causal fungus in Britain is Dothiostroma septosporum, also known as Mycosphaerella pini or Scirrhia pini.
There is still some confusion about how best to cultivate young trees.
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