7 tips to get rid of Japanese beetles in your garden | Garden & Landscape

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Most summers bring unwanted guests to Midwestern gardens: Japanese beetles.
These iridescent green beetles are best known for feeding on roses and linden trees, but in fact, they can feast on hundreds of different plants, according to Sharon Yiesla, a plant knowledge specialist at the Arboretum’s Plant Clinic. Morton. âWe started to see them on river birches and basil,â she said. “They have a lot of different restaurants they can go to.”
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Their varied tastes are one of the reasons why Japanese beetles are more difficult to manage than some other insects that feed on just one type of plant. âIt’s hard to control something that can eat up half the things in your garden,â Yiesla said.
Beetles can fly and emit pheromones into the air that attract others of their kind. If you have Japanese beetles this tends to lead to more Japanese beetles.
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Attempting to exterminate them with insecticides – which would also harm many beneficial insects – would ultimately be in vain. âIf your garden has good things to eat, more beetles will come right from the bottom of the block,â Yiesla said.
However, there are steps you can take to reduce the damage. Here are some tips from the Clinique des Plantes:
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- Get them early. If you tackle the first beetles as soon as you spot them, you may be able to reduce the beetle crowds. âTry to prevent them from signaling to other beetles that they have found a good source of food,â Yiesla said.
- Do not use traps. âJapanese beetle traps are a great way to invite all the neighborhood beetles to feast on your backyard,â she said. The traps, which employ these enticing pheromones, attract far more beetles than they kill.
- Try a water cannon. Spraying an affected tree or large plant with a strong stream of water can annoy the beetles and encourage them to soar into someone else’s landscape.
- Drop them. For smaller plants like rose bushes, fill a small bucket with water and pat or shake the branch to make the beetles fall into the water, where they will drown. A drop or two of dish soap in the water will prevent the beetles from escaping. âDon’t use insecticidal soap,â Yiesla said. âInsecticidal soap only works on insects at one stage of their life when they have a soft body, like larvae. It will do nothing to an adult beetle protected by a hard shell.
- Stop watering the lawn. Japanese beetles love to lay their eggs in lawns with moist soil. âThe eggs hatch into larvae that will eat the roots of your grass plants,â Yiesla said. âThen they’ll turn into adult beetles and start on the rest of your garden. To avoid making your lawn an extra-comfortable nursery for Japanese beetles, don’t water the grass. Let the soil dry out and the grass goes dormant during the summer.
- Do not treat lime trees with imidacloprid. In the past, flowering lime trees were regularly treated in the spring with a pesticide called imidacloprid to kill Japanese beetles. Unfortunately, the pesticide also killed the bees. Consequently, this use of imidacloprid on any species of lime (trees of the genus Tilia) is now against the law.
- Keep your point of view. âJapanese beetles won’t kill your plants,â Yiesla said. âPlants may look chewed, but they will survive it. It’s just a problem of ugliness.
For advice on trees and plants, contact the Morton Arboretum Plant Clinic (630-719-2424, mortonarb.org/plant-clinic, or plantclinic@mortonarb.org). Beth Botts is a writer at the Arboretum.
See the new Illinois laws that came into effect on July 1
665 tickets
The Democrat-controlled Illinois General Assembly approved 665 bills this legislative session, with the vast majority awaiting Gov. JB Pritzker’s signature.
But, Pritzker signed 42 bills. A handful of them will come into effect on January 1, 2022, but most have entered into force upon signature or will take effect on Thursday.
Here are some notable new laws in effect now or Thursday that Illinoisans should know about.
CAPITOLE NEWS ILLINOIS
Electoral reform
With the pandemic-related delays in the US census redistribution numbers, lawmakers have postponed the 2022 state primary elections from March 15 to June 28. The legislation also makes election day a public holiday, requires every county to have at least one universal voting center, and allows people to be added to a permanent mail-ballot list. (SB825)
Photo by Jose M. Osorio, Chicago Tribune
Vote by mail
Some pandemic-induced changes to voting for the 2020 general election, such as postal voting and curbside filing, will now be permanent features of future elections. (House Bill 1871)
State legislative redistribution
As they’re tasked with doing every 10 years, lawmakers approved new district boundaries for the Illinois House and Senate. Maps drawn by Democrats, who used the U.S. community survey of the U.S. census instead of waiting for decennial census numbers to arrive later this year, have been challenged in court by Republicans and some other groups. (HB2777)
Photo by Brian Cassella, Chicago Tribune
Illinois Supreme Court Redistribution
The Illinois Supreme Court’s seven-person district boundaries were successfully redrawn for the first time since the 1960s. (SB642)
Photo from Capitol News Illinois
Police reform
There has not been a more controversial bill that passed this year than House Bill 3653, also known as the SAFE-T Act, which passed during the Duck Session. lame in January. The provisions ending the cash bond and requiring all police officers to wear body cameras will not come into effect until 2023 and 2025, respectively. But from Thursday, the police will have to rescue the wounded, intervene when a fellow officer uses excessive force and limit their use of force. It also offers more stringent guidelines for the decertification of officers and would allow people to file anonymous complaints of police misconduct. (HB3653)
Payday loans
Lenders are now prohibited from charging more than 36% annual percentage rate on consumer loans. The average rate in Illinois was nearly 300% before the law was signed. (SB1792)
Vaccine lottery
The state’s fiscal year 2022 budget includes $ 10 million for a “vaccine lottery.” All Illinois residents vaccinated before July 1 will automatically be entered into the contest. It includes $ 7 million in cash prizes for vaccinated adults, ranging from $ 100,000 to $ 1 million, and $ 3 million in scholarships for vaccinated youth. (SB2800)
Photo by Antonio Perez, Chicago Tribune
COVID-19 emergency housing
Created guidelines for distributing over $ 1 billion in federal stimulus funds for COVID-related housing assistance. Also creates automatic sealing of evictions during the pandemic. (SB2877)
Pre-trial interest
Victims of personal injury and wrongful death will be entitled to collect interest from defendants from the time a lawsuit is filed. It aims to encourage the settlement of these cases. He was supported by trial lawyers and opposed by business groups. (SB72)
Casino work
All Illinois casino applicants are now required to enter into a project-work agreement when seeking a new or renewed license. (SB1360)
Compensation for victims of crime
Provides that a victim’s criminal history or crime status does not automatically preclude compensation for that victim or their family. Extends the applicant’s period for submitting requested information to 45 days instead of 30 days and provides that a final reward should not exceed $ 45,000, compared to $ 27,000, for a crime committed on or after August 7, 2022. (HB3295)
Electronic signature
Provides that a contract, recording or signature cannot be denied legal effect or enforceability simply because it is in electronic form or an electronic recording was used in its formation. Provides that if a law requires that a recording be in writing, an electronic recording complies with the law. (SB2176)
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