Which plants attract aphids most frequently?

Aphids prey on select plants that display high susceptibility characteristics, such as lush new growth and excessive sap production. Roses are clearly the most favored target, but tomatoes, young fruit trees, and certain herbs figure next in their preferences. I make a point to protect these plants in my garden each growing season.

Roses tend to draw in aphids more to new buds and stems. The insects can pierce tender tissues to feed on juicy sap. I inspect the buds weekly or more often in the flowering season. Catching aphids early allows me to spray with soap before there is damage to my blooms from the infestation.

Host plants, such as tomatoes are affected by viruses transmitted by aphids. To protect them, use reflective mulch and garlic spray. I also plant basil companion plants around each tomato, which may reduce infestations because they disguise the appealing odor of the tomatoes.

Fruits trees need protection through efforts in the spring. While new growth is sprouting on trees and before leaves begin to harden, look for aphids congregated on these new shoots. I release ladybug larvae around the peak of bud break. You can apply dormant oil in the winter to smother overwintering eggs on the bark of your trees.

Herb sensitivity is most pronounced when humidity is high. Aphids will target basil, mint, and cilantro. Ensure adequate spacing for good airflow and refrain from watering above the plants. I grow these in containers with a gravel mulch to minimize moisture around the plants.

Preventive practices include simply planting some plants together in the garden. Use garlic in combination with roses, marigolds, and ornamental plants around vegetables. Yellow sticky traps can also be placed, and I would recommend this or instruct my students to monitor the traps for early detection. I start my monitoring two weeks before the peak vulnerable time for plants.

Read the full article: How to Control Aphids: Proven Methods Guide