Rose pests that are out of sight but not out of mind: leaf miners and chilli thrips

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Rose pests that are out of sight but not out of mind: leaf miners and chilli thrips
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There are two rose garden pests in San Diego that use invisibility to their advantage; here are the red flags

) adults are small moths and flies. The female adult lays an egg just below the surface of a leaflet with her sharp ovipositor. When the egg hatches, we are unable to see the damage-causing larva as it feeds in twists and turns in a serpentine trail within the leaf for two to three weeks.

The first sign of damage from chilli thrips, a slight marbling of red and green, and puckering on fresh new foliage does not generate much alarm but must be cut out immediately. The finale is chilli thrips’ unmistakable signature: scorched and deformed blooms. Unfortunately, unlike western flower thrips that feed mainly on light-colored blooms, chilli thrips have an indiscriminate palette and attack blooms of every color.

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