“Symbiotic Serenity: Ant-Aphid Farming Dynamics”

“Symbiotic Serenity: Ant-Aphid Farming Dynamics”

Why is ant taking over my plants?

Welcome to the world of symbiotic serenity, where ants and aphids work in harmony to create a thriving ecosystem. Ants farming aphids is a fascinating phenomenon in nature, where ants tend to aphids, protecting and nurturing them like precious livestock, while aphids provide the ants with a sweet and nutritious honeydew secretion.

The relationship between ants and aphids is complex and benefits both parties. Aphids, which are soft-bodied sucking insects that feed on plant sap, secreting honeydew – a sugary secretion that aphids produce as waste from their sap consumption. This sweet substance is highly attractive to ants, who actively tend to aphids in order to obtain honeydew as a food source.

One of the most fascinating aspects of ant farming aphids is the behavior exhibited by ants when caring and protecting aphids. Ants are known to carefully tend to aphids, often referred to as “herding”. In doing so, they stroke the aphids with their antennae, stimulating them to release honeydew. Ants then collect and consume this honeydew, which serves as a valuable source of nutrition for them.

Aphids also benefit from this mutualistic partnership by relying on ants for protection from predators such as ladybugs, lacewings, and other aphid predators. In the presence of ants, aphids are less likely to be attacked by natural enemies, which allows them to feed and reproduce more freely. In addition, ants can transport aphids to new feeding sites, which helps aphids access fresh sources of sap.

However, this mutualistic relationship between ants and aphids can also pose problems for gardeners and homeowners. When ants protect aphids from natural enemies, this can result in increased aphid populations and plant damage. Therefore, it is important to control ant farming of aphids in order to manage aphid infestations effectively.

There are several methods gardeners/homeowners can use to manage ant farming of aphids:

  • Early detection is key. Regularly check for aphids at least twice a week while plants are growing rapidly.
  • Utilize natural enemies of aphids such as parasitic wasps, lady beetles, lacewing larvae, soldier beetles, and syrphid fly larvae. These insects can help keep aphid populations at an acceptable threshold.
  • Ant management is crucial. A band of sticky material can be wrapped around the trunk to prevent ants from reaching the aphids.
  • Prune and dispose of infested branches.
  • Insecticidal soaps and oils can be used to suffocate aphids. However, these products only kill aphids on contact. Other synthetic insecticides like malathion, permethrin, etc. are alternatives that can control aphids, but they may harm natural enemies and pollinators such as bees.

*Important to note, follow all manufacturers instruction when using chemical products.

In conclusion, ants farming aphids is a captivating example of mutualistic interactions in nature and serve as a compelling reminder of the wonders and intricacies of the natural world.

Aphids on Plants and their Management – UF/IFAS Extension St. Lucie County (ufl.edu)

https://www.mcgill.ca/oss/article/did-you-know/farmer-ants-and-their-aphid-herds#:~:text=Several%20species%20of%20ants%20have,ants%20as%20a%20food%20source

Douse Those Pests With Oil!

For centuries, people annoyed with plant pests have used oils to control insects, mites, and even some fungal diseases. Current oil products are better than ever!

horticultural oil and neem oil bottles

Sample oil products for pest control. Photo by Mary Derrick.

Commercially available horticultural oils are mineral oils from refined petroleum products. Impurities are removed and then an emulsifying agent is added that allows the oil to mix with water for application. Neem oil is a newer product that has become increasingly popular; the oil is an extract of the seeds of the neem tree.

What are some of the advantages of using an oil for pest control?

  • Oils are inexpensive and easy to apply
  • Oils can be used on most plants (check the label for a list!)
  • Oils control a wide range of pests that feed on plants (again, check the label for a list of pests the product will control!)
  • Oils pose a low risk to people, pets, and desirable beneficial predators
  • Since oils kill pests by blocking their breathing holes (spiracles) and/or gumming up their mouthparts, there is no chance for resistance to develop
  • One product can control both insects and some diseases like powdery mildew at once
  • Oils can be combined with some other pesticides to provide greater control

[warning] Don’t combine with, or use within 30 days of, any sulfur based pesticide. The combination can harm your plants![/warning]

There are always drawbacks to a product. What are the drawbacks?

  • Some plants (including cryptomeria, junipers, cedars, maples, and redbud) are damaged by oils – check the label!
  • Ensure good coverage during spraying as pests must be contacted with the oil in order for the control to work
  • Oils break down quickly and reapplication may be necessary
  • Check the label for instructions on the temperature range when it can be used. Older formulations generally are safe when temperatures are in the 40 to 80°F range but ultra-fine oils can generally be safely applied during hotter weather.

 

For further information:

Natural Products for Insect Pest Management from UF IFAS Extension

Insect Control: Horticultural Oils from Colorado State University Extension

Less Toxic Pesticides  from Clemson University Cooperative Extension