Blog

Blog

THESE LITTLE BUGS ARE REAL SUCKERS!

Posted on 20 February, 2015 at 15:40

There are hundreds of species of spider mites in the Family Tetranychidae. These 8-legged mites damage plants by inserting their piercing-sucking mouthparts into the leaves and suck out the juices. If unnoticed they reproduce in astounding numbers. Research shows that one mite can produce around 12 eggs per day per season. There can be 4 to 8 overlapping generations in a season. Mites are parthenogenetic, meaning they lay eggs without fertilization. They are also asexual. You see what a pest they can become.

The warmer the weather the faster they reproduce. Each mite grows in this progression: egg, larva, 2 nymph stages then adult. They hatch within 2-5 days as larvae, grow, molt and become adults in 7 to 21 days depending on the weather conditions. In September the adult over-winters in the soil, plant debris, canes or stems emerging in May or June. They start feeding on the older or mid-shoot leaves and disperse to the upper canopy in July and August.

 

How do you know they are there?

You will see white speckling on plant leaves and/or yellowish very small spots on upper leaves. There can be a silk webbing on the underside of the leaves. As populations grow, leaf margins (the outer edges of the leaf) appear dried and leaves turn silver or bronze, followed by turning yellowish brown then dry up and fall off. We use a 10X or 20X hand lens to see eggs which are tiny, clear marbles 1/150th of an inch and the adults who are 1/60th of an inch. Little creatures potentially causing major damage.

 

How do we find them?

Scouting (looking for signs and mites) starts in late May to early June. Leaf samples are taken from lower and higher branches. If with our lens we find more than one or two adults per leaf, we know that management is needed. A simple home owners test can be taking a piece of white paper, putting it under a suspect leaf and giving the leaf a few good whacks. Then you would need a high powered magnifying glass to see if the dark spots are moving. If they are, you have mites.

 

How do we treat them Organically?

Treatment decisions are based on good practices. They include spider mite density, abundance of predators, population trends, damage to foliage and weather conditions. We need to consider that mites do not fly but are spread by the wind. A few mites are usually controlled by predatory mites and insects, some lady beetles are good but they prefer aphids. Cool and rainy weather will reduce populations. These soft body mites are susceptible to water so a powerful spray of water hitting the underside of the leaves as well as the top can often fix a moderate infestation. A full blown infestation may require the adding of an organic wash such as Mighty Wash or a soil drench such as Azamax. Neem oil can be used but often customers do not like the light odor it creates.

All in all you may want us to come and check it out for you. Our garden experts will give you advise or will fix the problem. Remember, when you first notice them, you waited too long to contact us.

Sue

Categories: None

Post a Comment

Oops!

Oops, you forgot something.

Oops!

The words you entered did not match the given text. Please try again.

3512 Comments

Reply corsicactus
5:41 on 13 May, 2021 
backless crop top long sleeve red sox memorial day hat 2012 dates womens air jordan 4 black and white uga button down wholesale nike free 4.0 v4 all gold billig nike air tilce 1 brun svart
corsicactus http://www.corsicactus.com/
Reply moblermm
3:00 on 13 May, 2021 
charlotte hornet hat all grey ultra boost yeezy shoes uk billig black on black texas rangers hat model adidas ace 16.1 tf all white blue new york yankees cap camo quilt sort and gul nike shox
moblermm http://www.moblermm.com/
Reply Online Payday Loans
16:31 on 12 May, 2021 
personal loan calculators loan without bank account
Reply micksanders
16:11 on 12 May, 2021 
47 brand black boston red sox hat zombie black and red jordan cp3 billig royal blue nike lebron soldier billig herren schwarz roshe run woven turnschuhe denim polo outfit female nike seattle seahawks 12 fan 2015 super bowl xlix green game kids jersey
micksanders http://www.micksanders.net/
Reply Pay Day Loans
15:55 on 12 May, 2021 
paydays bad credit loans direct
Reply Direct Lenders
15:54 on 12 May, 2021 
short loans online loans no credit check
Reply Online Payday Loan
13:31 on 12 May, 2021 
guaranteed approval loans
Reply Quick Loan
11:22 on 12 May, 2021 
loans without direct deposit
Reply DenDaymn
9:30 on 12 May, 2021 
online pharmacy delivery usa levitra 10 mg price can i buy tadalafil in mexico tadalafil compare prices where to buy clomid 100mg
Reply saunasmith
6:24 on 12 May, 2021 
colorado rockies jersey nhl all red new air jordan 7 uk shoes billig black pink green nike air max billig where to buy new york yankees cap in dubai jobs nike mercurial superfly fg white volt schwarz custom patriots sweatshirt for cheap
saunasmith http://www.saunasmith.com/
Reply ferienheld
5:57 on 12 May, 2021 
nationals spring training hat for sale toronto blue jays fathers day hat pattern shoes adidas ace 15.1 all white shoes australia billig nike chicago bears 94 leonard floyd navy blue orange mens stitched nfl elite fadeaway fashion jersey nike magista opus fg 42 5 quiz billig hvid nike shox infant
ferienheld http://www.ferienheld.com/
Reply LisaDaymn
5:54 on 12 May, 2021 
pharmacy prices for doxycycline
Reply AmyDaymn
3:02 on 12 May, 2021 
retin a cream singapore
Reply fotowerft
1:07 on 12 May, 2021 
how to make a baby hat sewing distance san francisco giants purple hat 2016 nike air pegasus racer shoes black elite paris lenon mens jersey denver broncos 51 alternate navy blue nfl black and gold jordan after game shoes uk adidas eqt support turbo pink noise billig
fotowerft http://www.fotowerft.net/
Reply DenDaymn
0:58 on 12 May, 2021 
buy cialis online with paypal lisinopril 10 mg no prescription best over the counter viagra 2017 modafinil paypal canada pharmacy coupon
Reply JasonDaymn
22:44 on 11 May, 2021 
propecia compare prices rx pharmacy viagra lisinopril 4 mg canadian pharmacy online store order metformin cialis singapore pharmacy how to get a viagra prescription online orlistat otc viagra online pills kamagra tablets price in india
Reply Online Loans
20:08 on 11 May, 2021 
money payday loans instant cash online
Reply toddrash
11:45 on 11 May, 2021 
all grey ultra boost yeezy shoes uk billig black on black texas rangers hat model nike mercurial vapor xi neymar fg soccer cleats blue white volt online nike kobe 12 shoes nz billig asics gel volley billig polo shirt cropped
toddrash http://www.toddrash.com/
Reply Online Lenders
11:02 on 11 May, 2021 
payday loans with savings account
Reply markderry
10:27 on 11 May, 2021 
nike lunarestoa 2 essential review answers billig nike air huarache white radiant emerald for cheap billig nike zoom soldier 9 gray billig dallas cowboys clearance for cheap 2014 15 fc bacelona 11 neymar jr away soccer aaa t shirt womens adidas f49264
markderry http://www.markderry.net/
0