Tag: Integrated pest management

The Epic Battle Against the Asparagus Beetle

asparagus
Asparagus

Asparagus.

Mother Nature sure knew what she was doing when she created asparagus.

Asparagus is low in calories & sodium. It is a good source of calcium, magnesium, zinc, folic acid, protein, vitamins B, A, C, E, & K, rutin, thiamin, fiber, potassium, riboflavin, iron, phosphorus, copper, niacin, manganese and selenium, as well as chromium, a trace mineral that heightens the ability of insulin to transfer glucose from the bloodstream in cells.The amino acid asparagine derives its name from asparagus, as the asparagus plant is rich in this compound.

I’m not sure what she was thinking when she whipped up the asparagus beetle.

asperagus beetle eggs

These little guys are my bane. All in all they don’t do that much damage to my plants, but I hover over my plants like a circling vulture. I use IPM (Integrated pest management), meaning that I hunt and squish bugs! I can’t say that I am pesticide free, but most issues can be taken care of without chemicals. IMO no chemical action is need for these beetles. But, if you must, I’ve sprayed neem oil on the eggs after harvesting time, which is sometime late June (soon). There are normally 2 cycles of insects here, but there could be more.

The easiest way to catch these buggers is to have a cup of water ready. As you move towards them, they move to the other side of the stalk (quite funny to watch!) Put the cup under them & wave your hand near them. Their instinct is to drop to the ground, but instead, the cup of water will catch them. The larva and eggs aren’t as easy to remove. It’s the same method I use for typing… Hunt & peck.

spotted asperagus beetle

There are two kinds of asparagus beetle, the common asparagus beetle, Crioceris asparagi & the spotted asparagus beetle, Crioceris duodecimpunctata. Both feed on the tender young tips of the spear, but the spotted beetles larva tend to only eat the berries. How nice of them! =-)

© The Naturarian

Phenology – “The Timing of Things”

pink magnolia tree bloomingPhenology is a science in the timing of life cycle events in flora and fauna. The word phenology literally translates out to ‘the science of appearance’. Phenologists observe and study the relationship between events that take place with the season, local weather, or climate changes. Subjects in phenology include migration habits of birds, bud break, flowering, insect appearance, reproduction, allergy seasons, fall leaf color and animal hibernation times. Carl Linnaeus was one of the first scientists to record phenological observations. He also is famous for creating the classification system for plants we still use today.

Although more individuals utilized phenology in the past, using these observations/data today can aid land managers and anyone else wanting to lower their landscaping costs. Knowing exactly when to apply an herbicide or pesticide, when to fertilize, or when to plant, can greatly reduce the cost and risk to all landscape caregivers. An example would be that when forsythia blooms, it correlates with the temperature necessary in the germination of crabgrass, and if an herbicide preventing it’s germination is applied in this window, it can be prevented. Missing the window of applying the herbicide can result in the only other way to control this weed, mechanical cultivation, known as backbreaking, weeding work!

One enormous advantage of phenology is that you do not need a degree to participate, just dedication and a central location for records. Many websites collect data and provide databases for different plant and animal cycles. Project Budburst only monitors plants and is a bit more user friendly for the hobby gardener, and The National Phenology Network that monitors more than plants.

Collection of data must be precise for the information to reflect the correct geographic area. When submitting data to a plant database, individuals are required to give positive identification of plant, latitude/longitude and elevation of the plant, and any other notes that could affect these readings. Things that could affect readings are the plant is near a building, on a slope, or surrounded by other plants, any possibility of something creating a microclimate for the observed plant. This is why the same species of a plant can have a different cycle than one nearby. Observations of the subject plant need to be conducted at least three times a week. Information on these six phenological stages are collected: budburst (first leaf), full leaf, first flower, full flower, end flower, and seed or fruit dispersal. After the information has been collected, it can be compared with previous years and associations such as climate changes affecting plants can be made.

In the future, I will be reporting phenological events for Midwestern gardeners in an attempt to help them reduce or eliminate the use of pesticides.

© The Naturarian