Tagged with "Weeds"
Irrigation running all spring!!….Your lawn needs deep roots; down where it is cool and damp when the heat of summer comes. Best way to get them down there is to let them go looking for it now. Watering early in the season makes roots lazy. They stay on top, where they will be susceptible to insects and sun later on. Watering now can cause fungus and disease problems later. Watering now encourages weed seed germination. Watering now breeds mosquitoes and ticks, so...
WAIT TO IRRIGATE!
Don’t run your system until the weather is hot and dry. Lawn grass will need watering when it wilts. How will you know? Wilted grass shows your footprint. Generally, late June.
Contrary to conventional wisdom, letting your lawn dry out is actually good for it. Periods of dryness allow the grass to develop deeper, stronger roots that are better able to resist pests, weeds, and drought conditions over time. Too much water promotes fungal growth and nutrient run off, and creates ideal conditions for mosquitoes and other water-loving pests to flourish. Plus, why waste water that your grass doesn’t need anyway?
Rule of thumb for well-established lawns: Wet the soil 6" down, then allow to dry 4-6" down before watering again. How to tell? Dig a hole or use a soil moisture meter.
A DIY Update
Wilt Weeds,Wilt! A DIY Update.
This spring we shared a recipe for a weed-killing alternative to using harmful synthetic chemicals on driveways, patios, and walkways. This recipe is meant for use on spaces you don't intend to plant:
1 gallon of horticultural or industrial strength vinegar (20-30% concentration)
1 cup of Epsom salts (purchase at your local garden center for a good price!)
Optional: 1 tsp natural soap
Apply with a sprayer or watering can. Applying early on a hot day will help with the effectiveness. Remember this is only for use in spaces where you don't intend to grow any plants or grass as essentially you are salting the earth. Wear gloves! Vinegar can burn your skin at higher concentrations.
Have a large space to conquer? Lay a tarp down. Not only will it block sun but will deprive weeds of water as well for quick elimination.
Here are our results on this easy, DIY mix, sans soap. Take a look at the amazing before and after photos just a few hours after application – not bad! Repeated use on an area will eventually acidify the soil and increase its effectiveness.
This weed-killing mixture did leave a little discoloration to our driveway gravel so patch testing is recommended, especially before using on sensitive paving or your expensive pool patio.
Give it a try – we would love to see your results! Share with us by tagging your results on Instagram or sharing to our Facebook @perfectearthproject
Pre-emergent are herbicides designed to kill weed seeds BEFORE they sprout. They are usually granular and are applied to lawns and flower beds in the spring, but they persist for three months – that means prolonged time for human exposure.
Below we have gathered important information about some typical active ingredients and their effects:
Prodiamine – carcinogen, neurotoxicity
Pendimethalin – extremely toxic to fish and aquatic organisms
Isoxaben – possible carcinogen, kidney/liver damage, toxic to birds
Oxyfluorfen – possible carcinogen, reproductive, birth and development effects, kidney/liver damage, skin irritant, toxic to fish and aquatic organisms
Oryzalin – kidney/liver damage, skin irritant, birth and developmental effects, toxic to fish and aquatic organisms
Trifluralin – extremely toxic to fish and aquatic organisms
Also, since the active ingredient is usually only 1% ... what are the 99% "other ingredients" ? They are often a blend of equally toxic ingredients that amplify the deadly effectiveness, which means they are even more toxic for you too.
Safe alternative? Although corn-gluten is often recommended as an organic pre-emergent for lawns, it is expensive, and timing is too critical to be effective, so we don’t recommend it. The PRFCT nature-based approach to weed control is to outcompete weeds in lawns. Overseed lawns in the fall or early spring before weeds germinate. In shrub and flower beds plant many small plants close together, leaving little to no space or sun for weeds. More plants is always a better option for filling space than bark mulches from far away.
If there are bare areas in your lawn, reseed now, the grass can fill in and weeds will have no place to grow in the spring! But, don't over seed! Over seeding is the process of spreading seed over an existing lawn to fill in bare patches. How much seed to apply? Depends on the type of seed you are using. Look on the package for recommended rates.
Over seeding occurs when too much seed is applied over a given area. Why isn't more better? Too many grass plants growing too close together leads to over competition and die-off. In humid conditions, it can also cause mold and other fungus diseases like in the picture above. Gross.
If compacted: break up or aerate the soil.
Replace or amend poor soil with organic, weed free compost or new soil.
Atrazine is the second most widely used pesticide in the US (after glyphosate), with over 73 million pounds applied each year. A common agricultural pesticide, atrazine also is used on turf for broadleaf and grassy weed control. Because atrazine kills cool-season grasses like Kentucky Bluegrass, it is primarily used on lawns in warmer climates (ie. the Southeastern United States).
In humans, atrazine has been linked to:
• Endocrine disruption (what does this mean, anyway?)
• Birth defects and reproductive disorders
• Neurological effects
• Kidney and liver damage
• Eye and skin irritation
How are people exposed to atrazine? Not just direct contact with treated lawns, fields, and food. Atrazine is found in 94% of drinking water tested by the USDA, usually spiking in spring and summer months when it's most heavily applied. Even at extremely low levels, atrazine can interfere with human hormones, fetal development, and fertility. The European Union banned its use in 2004 over concerns that it is a groundwater contaminant.
What is endocrine disruption?
Your endocrine system is the set of glands and hormones they produce (such as estrogen, testosterone, and adrenaline) that help guide your development, growth, and reproduction. Some chemicals—known as endocrine disruptors—mimic your hormones, block hormone absorption, or otherwise alter the concentration of hormones in your body. Endocrine disrupting chemicals have been linked to ADHD, Parkinson’s disease, Alzheimer’s disease, cancers, diabetes, cardiovascular disease, obesity, early puberty, infertility, and other reproductive disorders.
Photo credit: Lacuna Design / Getty Images