Maximum Yield USA 2016 June | Page 102

PESTS Most gardeners have had to fight off a pest infestation in their garden at one time or another. The good news is there is a wide range of pest control options that allow you to deal with common plant pests without unleashing harmful chemicals and potentially exposing you, your family and your environment to harm. Mother Nature has already figured out how to deal with many of the pests that are bad for our gardens, we just need to let her be our guide. Read on to learn more about some of the most common plant pests out there and how you can effectively deal with them the natural way. Aphids Aphids, which are sometimes referred to as plant lice, damage plants by sucking out the sap from their leaves. Although they are large enough to be seen without magnification, their presence can go undetected until after significant damage has been done. There are many different kinds of aphids, but their modus operandi is generally the same. Damage from aphids generally appears as a puckered or blister-like appearance on leaves, which can lead to leaf distortion or stunted growth. 100 Maximum Yield USA  |  June 2016 To add insult to injury, aphid frass (insect excrement), more commonly known as honeydew, attracts ants. Honeydew is a sweet substance made primarily of the sap aphids have consumed. Plants that have been contaminated with honeydew can develop a disease known as sooty mold, which creates a tar-like appearance on plant leaves that inhibits photosynthesis. Aphids are prolific reproducers. Female aphids are born pregnant and can start laying their young within a week of their own birth. Due to their rapid population growth, multiple strategies often have to be employed to effectively control them. Many different beneficial insects will either feed upon or parasitize aphids, or do both. One of the most effective biological controls that can be unleashed upon an aphid army is the common lady beetle, Hippodamia convergens. Lady beetles are carnivores that will seek out aphids and consume plenty of them every day. Lady beetle larvae will consume aphids and other pests in greater numbers than their adult counterparts. Aphidoletes aphidimyza and Aphidius colemani are two parasitic wasps that seek out aphids in which to inject their eggs. Their eggs develop inside the aphids and feed on them from within. " Aphids, which are sometimes referred to as plant lice, damage plants by sucking out the sap from their leaves."