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Botany Photo of the Day
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Zinnia haageana 'Old Mexico' and Autographa californica

Zinnia haageana 'Old Mexico' and Autographa californica
Zinnia haageana 'Old Mexico' and Autographa californica

Zinnia haageana 'Old Mexico' is an All-America Selections Winner from forty-three years ago –, a cultivar that has stood the test of time. Considering its performance in trials done by The Gardens at the University of Georgia, that decades-long popularity is no wonder. It has performed similarly well this year at UBC.

Autographa californica is the moth, commonly known as the alfalfa looper. The sickle-shaped white spot on the wing is an easy diagnostic feature.

The adult moth does no damage, while the caterpillar is rarely present in numbers large enough to have an economic impact on crops. In fact, the University of California Integrated Pest Management Program for cotton and loopers states: “Moderate populations of loopers may be more beneficial than harmful, as they support populations of natural enemies that also attack the more destructive bollworms, budworms, and beet armyworms.”. Similar statements are made on the site regarding loopers and other Californian crops such as lettuce, artichoke and tomatoes. Along with a suite of predators, alfalfa looper is also susceptible to a baculovirus.

Botany / conservation resource link: Botanic Gardens Conservation International “brings together the world's botanic gardens to work for plant conservation through science, education and horticulture.”

a place of mind, The University of British Columbia

 
UBC Botanical Garden and Centre for Plant Research
6804 SW Marine Drive, Vancouver, B.C., V6T 1Z4
Tel: 604.822.3928
Fax: 604.822.2016 Email: garden.info@ubc.ca

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