How to keep your bios happy Rose Buitenhuis Banker plants Provide a - - PowerPoint PPT Presentation

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Oct 30, 2023 130 likes •210 views

How to keep your bios happy Rose Buitenhuis Banker plants Provide a food source and/or an alternative reproduction site for natural enemies Ensure a constant presence of natural enemies in the crop Castor beans - predatory mites

SLIDE 1

How to keep your bios happy

Rose Buitenhuis

SLIDE 2

Banker plants

Provide a food source and/or an alternative reproduction site for natural enemies Ensure a constant presence of natural enemies in the crop

Castor beans
predatory mites
Ornamental peppers
predatory mites
Orius

SLIDE 3

10 20 30 40 50 1 2 3 4 5 6 7

28-Feb 31-Mar 30-Apr 31-May 30-Jun

Mean Number of Orius

Orius Flowers

Mean Number of flowers

Orius banker plants greenhouse studies

Flowering ornamental peppers:

Black Pearl, Purple Flash

Orius eat pollen in the flowers, lay

eggs in the stems/leaves

SLIDE 4

Improve Orius banker plants?

Adding food to banker plants
Warm temperatures

2 4 6 8 10

March 28 April 11April 24 May 9 May 23 June 6 June 20

Warm greenhouse Cool greenhouse 2 4 6 8 10 12 14 16

Jul. 21
Aug. 4
Aug. 18
Sept. 1
Sept. 15

Vegetative Flowering Vegetative + eggs Flowering + eggs

Orius/plant Orius/plant

SLIDE 5

Supplemental food

Predatory mites Orius Cattail pollen x Ephestia eggs x x Artemia cycts x x

SLIDE 6

!! Thrips are omnivores

Predatory mites Orius Thrips Cattail pollen x x Ephestia eggs x x x Artemia cycts x x x Long term: predators benefit more through increased populations

SLIDE 7

Other strategies

Other pests – benefits of mixed diets (e.g. thrips and

whiteflies)

Mulch layer with astigmatid (food) mites
Artificial fibres provide oviposition sites for predatory mites
Pollen on-twine (food and oviposition sites)
Volatiles