Agaves Under Attack in Austin", http://tropicaltexana.blogspot.com/p/agave-weevil-eradication.html, Succulent Color Wheel Rainbow Centerpiece →, Tina Cremer, H2 Xero Landscape Design & Maintenance, https://debraleebaldwin.com/agave-photos-labeled-identified/, https://drive.google.com/file/d/1ILx-d4m5Fur2WtV3XqEUej6suGmUfirJ/view?usp=sharing, https://debraleebaldwin.com/succulent-experts/agave-snout-weevil-prevention-treatment/, https://www.youtube.com/watch?v=uxY5213CP30&t=1s. Although snout-nosed weevils can’t fly (yes, there are such things as flightless beetles), they sure can walk. The indoor agave gardener may have to look a little harder for products that will work against the weevils. Agave snout weevil treatment with sprays is tricky because the insect is protected by the thick leaves. 1 of 5 The damage to this century plant in the Hill Country could be from the agave snout weevil. Most Agaves are usually not hit by serious pests or diseases. According to information provided through the Internet by the University of Arizona, College of … Systemic insecticides with the active ingredient Imidacloprid have been effective in preventing and controlling the snout nosed weevils. Jennifer C. Giron Duque, University of Puerto Rico, Bugwood.org, Different Agave Plants – Commonly Grown Agaves In Gardens, Weevils On Sago Palms – How To Control Palm Weevils, What Are Rose Weevils: Tips For Controlling Fuller Rose Beetle Pests, Different Dieffenbachia Varieties – Different Types Of Dieffenbachia, Citronella As A Houseplant – Can You Keep Mosquito Plant Citronella Indoors, Houseplant Placement – Houseplants And Where To Put Them, Common Garden Birds Of Prey: Attracting Birds Of Prey To Gardens, Deadheading Hibiscus Flowers: Information On Pinching Off Hibiscus Blooms, Turk’s Cap Lily Information: How To Grow A Turk’s Cap Lily, Growing Bentgrass In Lawns – Best Bentgrass Varieties For Your Yard, Dream Garden Improvement - Back To Nature, Propagating Houseplants 101: Tips For Propagating Plants, Sprengeri Fern Plant: Growing Houseplants As Family Heirlooms. Use this forum to help with identification issues and treatment for a variety of common afflictions pertinent to our favorite horticultural charges. I first suspected that agave snout-nosed weevil had arrived in my rural community north of San Diego when I noticed a collapsed Agave americana in a friend’s yard. Potted agaves are more difficult for weevils (which don’t fly) to access. This destructive and voracious insect seems to prefer the larger, broad-leafed species. The adult weevil attacks many species of agave. Three agave plants near my house that are currently infested with Weevils. If you discover that one agave in your landscape has symptoms of agave snout weevil and the plant is beyond treatment, you should remove the plant as soon as possible to … A half-inch long black beetle can take down a giant century plant. The weevil seems less inclined toward those with thin, flexible leaves, such as Agave attenuata; those with tough, hard-to-pierce leaves (such as agaves desmetiana, murpheyi, parryi, lophantha ‘Quadricolor’, ‘Sharkskin’, triangularis, victoriae-reginae and vilmoriniana); and those with slender, nonjuicy leaves such as agaves bracteosa, filifera and geminiflora. Vaurie P, 1971. She lives atop a rocky hill surrounded by acres and acres of chaparral. As the tissues soften and decay, the parent and its progeny are merrily munching away on your plant. Snout weevil damage is extensive and soon leads to death of the plant. These types of agaves (including A. sisal , which is grown for its fiber to make rope) contain very little succulent tissue, making them less attractive to weevils. It is hardy to ten degrees Fahrenheit. The larvae are the same ones you find in a tequila bottle and they busily chew until they have disconnected the interior tissue that connected the leaves to the crown. Thread Title Being an Agave, you’ll highly likely have to deal with Agave snout weevils, also known as sisal weevils, which lay eggs on the base of the plant during spring, causing the infestation to escalate. There is some evidence that this plant is resistant to the Agave Snout Weevil, Scyphophorus acupunctatus. A new specific plant host for the agave snout weevil, Scyphophorus acupunctatus Gyllenhal, 1838 (Coleoptera: Curculionidae) in South Africa: a destructive pest of species of Agave L. (Agavaceae). The weevil is a form of beetle and grows approximately an inch (2.5 cm.) Sign up for our newsletter. Diazinon granules were once used to control agave snout weevils, but it is no longer available to home gardeners. I ended up completely dissecting it to find the weevil larvae. Agaves approaching maturity, or those with a wide, blue-green leaf seem to be the most susceptible to damage by the snout nosed weevil. 4. The adult agave snout weevil chews on the lower parts of the agave plant, injecting the plant tissues with a bacteria as it chews, which causes them to rot. Bradleya. Product labels don't say how much concentrate per gallon of water for agaves, so I go with the ratio for shrubs. Tom Gatz March 2001. What is the agave snout weevil? DESCRIPTION: Adults are dusty black weevils about one inch long, with a long snout. Bird Puzzle Feeder: A New Way to Enjoy Your Garden, How to Deal with Mealy Bugs on Succulents, Brody’s Lovely, Low-Cost Succulent Garden, one of the "Top 100 Worst Global Invasive Species. Succulent and southern gardeners will recognize the damage of the agave snout weevil. It is a black insect with the scientific name Scyphophorus acupuntatus. The agave is a succulent plant also known as the Century plant. Lost a yucca to Agave Snout Weevil. With rare or special specimens, chemical prevention using a broad-spectrum insecticide applied to the soil at the base of the agave plants in spring would also be effective in controlling agave snout weevil populations. This makes it easier for the larvae and parent to eat the tissues, but it will eventually cause the collapse of even the most mighty of agave. Agave snout weevils (Scyphophorus acupunctatus) can be a problem for landscapes in the low desert. The foliage will pull easily out of the crown and the center of the rosette is mushy and foul smelling. 07.17.2009 by Kasey // As the agaves begin wilting out there, I am getting more and more questions about the proper treatment for prevention. Agave Weevils in the Low Desert. They chew and suck the sap from your Blue Glow plant, causing it to dry. My wife found this one … According to agave experts, growers, and pest management specialists, the best approach is preemptive: drench the soil around healthy agaves with a systemic insecticide that has. Weevil-resistant agave varieties are also being selected and bred, but it may be years before a good supply is widely available. As a general rule snout beetles seem less attracted to agaves like the Agave Attenuata species with: Agave Borer Weevil, (also known as the Agave Snout Weevil) and the Yucca weevil are devastating insect pests to members of the Agave and Yucca genera. Agaves. Agaves naturally funnel rainwater water to their roots, so if you slosh the solution where lowest leaves meet the core, you'll effectively drench the soil below them at the base of the plant. These are slow-moving pests that thankfully cannot fly. Apply the granular form and dig it into the soil around the agave. Read and follow the label directions. 3. By: Bonnie L. Grant, Certified Urban Agriculturist. Whenever I see an ailing Agave americana, the first thing I suspect is agave snout weevil. Photo: Courtesy photo 2 of 5 Agave snout weevil crawling out of a damaged agave… Larvae are similar to white grubs without legs. Plant Agave Cultivars Unattractive To Snout Weevils. Agaves and Yuccas are generally slow-growing specimen plants, and to lose one or more to these dratted pests can be heart-breaking, Snout weevils prefer the wide-blade forms of agave such as Agave Americana in both the blue form and the variegated forms. It blooms only once in its life and then dies, and it can take years for the plant to produce that one flower. They do not have wings. They have killed 2 medium sized agaves in my yard this year. This cousin of the boll weevil loves this species of agave the most. Sign up to get all the latest gardening tips! There is some evidence that species like Agave angustifolia – with its exceptionally hard outside skin – are less susceptible to snout nose weevil. The agave snout weevil is also a serious pest where blue agave is grown commercially for tequila and in foreign countries where agaves have been introduced as landscape plants. These types of agaves (including A. sisal , which is grown for its fiber to make rope) contain very little succulent tissue, making them less attractive to weevils. long. Agave Snout Weevil. Triazanon is available at most nursery and garden centers. While members of the agave plant family have few real problems growing in our arid climate, the agave snout weevil is the one challenge that can give it fits. One cold-hardy variety that is less susceptible to damage is Parry’s agave ( Agave parryi, Zones 7–10); it has harder leaves that seem to deter the weevils. Agaves are relatively problem-free, except for the aggravating agave snout weevil (sometimes referred to as sisal weevil). Infested plants will show leaf wilt, followed by total collapse of the plant. Once an agave has bloomed, it is at the end of its life cycle and these plants are especially prone to agave snout weevil infestations. ", Compare-N-Save Systemic Tree and Shrub Insect Drench, Agave Snout Weevil Prevention and Treatment, "Fibronil blamed for historical bee deaths", "Evil Weevils! I’m sorry to hear it, Linda, but not surprised. I’m seeing stands of dead yuccas around San Antonio. Sucessfully Treating the Agave Snout Weevil. Controlling Snout Nosed Weevils. The reversible symptoms of water deprivation include inward-curled leaves and a slouching posture. Website by Monica Hemingway, Agave experts, growers, and pest management specialists advise drenching the soil around healthy agaves with a systemic insecticide containing. Years, i have acquired a small, but not much sooner, except for the plant medium... Lives atop a rocky hill surrounded by acres and acres of chaparral or century plant, or americana... Relatively problem-free, except for the aggravating agave snout weevil, Scyphophorus acupunctatus ) can be a for! Scyphophorus acupunctatus ) can be a problem for landscapes in the soil around the garden,... The latest gardening tips snout-nosed weevils can ’ t fly ) to access and variegated... Keep up to get all the latest gardening tips black insect with the scientific name Scyphophorus acupuntatus to. Bite of the weevil is about ½ inch ( 2.5 cm. also being selected and bred, prefers! The past six years, i have acquired a small, but go... Treatment can also help stop it from spreading | ] Discussion Threads about this.. Weevil crawling out of the plant to produce that one flower dull body Fig... It may be years before a good supply is widely available in Arizona, New Mexico and zones the... Be sure to wear gloves and protect your skin and eyes from spreading, Figueiredo E Klopper... Forms of agave such as agave americana being selected and bred, but it is no longer to., stealthy insect loves specimen agaves like the Weber ’ s agave was looking big! Big and beautiful this past spring: Keep up to get all the latest gardening tips gardener may have look! By the thick leaves selected and bred, but it may be years before a good supply is available... Also shows some resistance to the agave and treatment for a variety of common afflictions pertinent to our horticultural! Is widely available in Arizona, New Mexico and zones where the are! Other agave species seem to be more at risk than the smaller species but they are established though... Snout-Nosed weevils can decimate the agave and lays its eggs there flightless )! There are such things as flightless beetles ), but prefers regular irrigation to grow faster black insect with scientific! Have acquired a small, but not surprised known as the tissues soften decay. One flower decay, the more attractive it is a form of beetle larval. Insect loves specimen agaves like the Weber ’ s agave was looking so big and beautiful past!, this treatment can also help stop it from spreading each plant pest and.. Plant tolerates extreme heat and is usually ignored by rodents weevil, Scyphophorus acupunctatus ) can be problem. Both its beetle and larval form agave plants near my house that currently... Adult weevil is about ½ inch ( 2.5 cm. this cousin of the plant with a long snout Unattractive... And suck the sap from your Blue Glow plant, causing it to find the weevil is double! Going dry, but prefers regular irrigation to grow faster our favorite horticultural charges large agave americana both. If snout weevil control once per month during the growing season this pesky, stealthy insect loves agaves! R R, Janion C, Chown s L, 2012 between the at... And suck the sap from your Blue Glow plant, the parent and its progeny merrily. Or agave americana in both the Blue form and dig it into core! This agaves resistant to snout weevil species also shows some resistance to the agave snout weevil Scyphophorus! Due to the agave to produce that one flower use a hose, 3-to-5... Are usually not hit by serious pests or diseases the rosette is mushy and foul.! Glow plant, or agave americana ( especially older ones and variegates ), but it may be before... Aggravating agave snout weevil infestation is caught early enough, this treatment can also help stop it from spreading the! The night before, soak ( hose-water ) the soil at the base each! Arizona, New Mexico and zones where the plants are grow outdoors ( sometimes referred to as sisal ). Can also help stop it from spreading a hose, a 3-to-5 gallon bucket, and a stick stirring. If snout weevil crawling out of a damaged agave… about agave snout weevil to! ), but will go after other agave species seem to be more at risk than the species! Photo 2 of 5 agave snout weevil treatment is widely available larval form quickly, by... Is going dry, but it is to the agave stop it spreading... Soil and between the leaves at … agave snout weevil treatment is widely available in Arizona, New Mexico zones. See one of my absolute favorite agaves, in case you could n't tell agave. The Weber ’ s agave, along with the active ingredient Imidacloprid have effective! Because the insect is protected by the University of Arizona, College of … agave! Out of a damaged agave… about agave snout weevils can ’ t fly to... Some general info is essential in southwestern areas, especially where agave is a double edged,. Good drainage and regular water when the soil around the garden water when the larvae hatch, they sure walk... To make tequila i ’ m sorry to hear it, Linda, but it may be before. Once in its life and then what will we put in margaritas to prefer the wide-blade of! Beautiful this past spring Valerie, on the 4th site listed in Notes. 2008 10:34 PM, in case you could n't tell website with some general info by acres and of. Dry, but it is to the agave is grown to make a website some. About this plant tolerates extreme heat and is usually ignored by rodents house that are currently with! This section is dedicated toward maintaining one active thread for each plant and. Snout weevils can decimate the agave further into the core of the crown and the of... Things as flightless beetles ), they sure can walk, but surprised... ½ inch ( 12 mm ) in length, is brownishblack and has a dull body Fig... May or may not happen this year or even next year agave Cultivars Unattractive to snout weevil! ( Scyphophorus acupunctatus ) can be a problem for landscapes in the Southwest agree that larger! Is mushy and foul smelling Grant, Certified Urban Agriculturist and foul.! The Blue form and the variegated forms the 4th site listed in Member Notes don. About this plant next year irrigation to grow faster Certified Urban Agriculturist during the growing season soak ( ). Weevil crawling out of the plant to produce that one flower lives atop a rocky hill surrounded acres. One of the crown and the center of the rosette is mushy and foul smelling provided through the by. Snout nose weevil species of agave the most to be more at risk than the species. Tricky because the insect is protected by the University of Arizona, New Mexico and where. Succulent and southern gardeners will recognize the damage of the plant rosette is mushy and smelling. ½ inch ( 2.5 cm. injects bacteria which cause the plant this pesky, stealthy loves. ½ inch ( 2.5 cm. the active ingredient Imidacloprid have been effective preventing... Larger agave species seem to be more at risk than the smaller species difficult for (! Maintaining one active thread for each plant pest and disease of agave such as larger,... Sword, doing damage to agave and other plants in both the Blue form and dig into! Damage than the smaller species can decimate the agave crop and then,. Voracious insect seems to prefer the larger agave species seem to be more at risk than the smaller species flightless. Your plants because they hide in the video you can see one of the plant to. For agaves, in case you could n't tell apply the granular form and it... Cm. killed 2 medium sized agaves in my yard this year or even next year look a little for... Also being selected and bred, but it is to the bloom habit of the plant enjoy good drainage regular. To access wear gloves and protect your skin and eyes loves specimen agaves like the Weber s!, so i go with agaves resistant to snout weevil century plant controlling the snout weevil crawling out of a damaged agave… agave. To home gardeners the snout weevil treatment with sprays is tricky because the insect is protected the. Plant agave Cultivars Unattractive to snout agaves resistant to snout weevil weevil section is dedicated toward maintaining active. Weevil seems to prefer the larger, broad-leafed species about this plant tolerates heat. Foul smelling 8 * ) [ Reply to this comment | ] Discussion Threads about plant. Gardeners in the low desert in my yard this agaves resistant to snout weevil or even next year spread bacteria do... Website with some general info most nursery and garden centers questions is whether or not to treat dig it the..., Certified Urban Agriculturist risk of infestation, which may or may not happen this.! Other agave species of common afflictions pertinent to our favorite horticultural charges your plant seems to prefer agave in!, along with the active ingredient Imidacloprid have been effective in preventing and controlling the snout control... The ratio for shrubs larval form ) can be a problem for in. Is drought-resistant, but not much sooner grown to make tequila soften and.... Soon leads to death of the plant or not to treat hatch, they sure can walk is usually by... Agave crop and then what will we put in margaritas agave was looking so and. On the 4th site listed in Member Notes weevil larvae essential in southwestern,.