Currently viewing the tag: "WTB? Mt. Washington"
What's That Bug? does not endorse extermination

Subject: What’s this Hopper on my Cannabis?
Location: Mount Washington, Los Angeles, California
July 8, 2019 7:51 am
Subject:  Hi Bugman,
As my Cannabis plants grow larger, I’ve noticed that many of the plants have predators on them.  In addition to the Mantid I submitted earlier this year, I am happy to report that four of my plants have mantids on them and several have Green Lynx Spiders as well.  Can you please identify the hopping insect that I have found on my plants this year.  One of the images of the Green Lynx Spiders I am sending has it eating an immature hopping insect, though it is difficult to see.  The other image is of a winged adult.
Signature: Constant Gardener

Green Lynx Spider eats (presumably) Glassy-Winged Sharpshooter nymph

Dear Constant Gardener,
Thanks so much for keeping our readers informed about your thriving
Cannabis ecosystem.  The adult hopping insect is a Glassy-Winged Sharpshooter, and according to BugGuide:  “The biggest problem is that it can spread the disease-causing bacterium Xylella fastidiosa.  The most important biocontrols are egg-parasite wasps in the genus Gonatocerus. Spiders, assassin bugs, and praying mantis prey on the mobile forms.”  Several years ago, we received a report of Glassy-Winged Sharpshooters, Homalodisca vitripennis, on marijuana.  According to the University of California Integrated Pest Management Program site:  “The glassy-winged sharpshooter is found in many habitats, including agricultural crops, urban landscapes, native woodlands, and riparian vegetation. It feeds on hundreds of plant species across dozens of plant families. Hosts include numerous common woody plants as well as annual and perennial herbaceous plants. It is common to find this insect on acacia, avocado, eucalyptus, citrus, crepe myrtle, heavenly bamboo, grape, photinia, pittosporum, hibiscus, periwinkle, xylosma, some roses, and many others. Host preference changes throughout the year, depending on the availability and nutritional value of host plants. Some hosts are preferred for feeding while others are preferred for reproduction. Irrigation level and fertilizer additions can also impact the attractiveness of hosts for sharpshooters.”  There is no mention of Cannabis.  We presume the nymph being eaten by the Green Lynx Spider is a member of the same species.

Glassy-Winged Sharpshooter

Green Lynx Spider

What's That Bug? does not endorse extermination

Subject:  What is it?
Geographic location of the bug:  Mount Washington, Los Angeles, California
Date: 06/28/2019
Time: 08:09 AM PDT
Your letter to the bugman:  3legged.  Focus is a bit off. its foot closest us looks good.
How you want your letter signed:  Chris Howard

Thread-Legged Bug

Hi Chris,
This is a Thread Legged Bug, an Assassin Bug in the subfamily Emesinae, and it is a beneficial predator.  It actually does have six legs if you look closely.  Four rear legs are used for walking, and projecting out in front of the two antennae are the pair of raptorial front legs that are used to capture prey.  Here is a BugGuide image for comparison.

What's That Bug? does not endorse extermination

Subject:  What kind of cocoon did I find on my Cannabis plant?
Geographic location of the bug:  Mount Washington, Los Angeles, California
Date: 06/02/2019
Time: 5:55 PM EDT
Your letter to the bugman:  Dear Bugman.
My plants are growing taller and I have seen some tiny California Mantids and young Green Lynx Spiders prowling for prey.  It is funny how I watched the same predators on my plants last year.   There are also numerous immature hopping insects I know are not beneficial to my plants, so I have been squashing them instead of taking their picture, but today I found this very interesting cocoon thing on the leaf of a girl that grew from a seed that came from a Grand Daddy Purple X Blueberry Haze plant I grew last year.  Sorry, but I removed it before taking a photo, so I made a dramatic recreation of the way I found it on the underside of a leaf.  I hope you enjoy my still life.  Please tell me what it is.  I really want to know What’s That Bug?
How you want your letter signed:  Constant Gardener

Ichneumon Pupa

Dear Constant Gardener,
This is a very exciting posting for us.  We instantly recognized this Ichneumon cocoon in the genus
Charops from identification requests we have received from Taiwan and from South Africa.  Ichneumon Wasps are parasitoids, meaning the female wasp lays eggs on a larval host, and the larva that hatches then feeds on the internal organs of a host insect or arthropod, eventually killing the host as the larva nears maturity.  According to BugGuide:  “Known hosts include Tarachidia erastrioides (Grenee) and the green clover worm, Plathypena scabra (Fabricius), both noctuids. (Anonymous 1974)”.  You might need to add Ichneumon Wasps from the genus Charops to the list of patrolling predators in your garden.

Pupa of a Charops Ichneumon Wasp

What's That Bug? does not endorse extermination

Subject:  Mantis
Geographic location of the bug:  Mount Washington, Los Angeles, California
Date: 05/17/2019
Time: 06:32 PM PDT
Your letter to the bugman:  Dear Bugman,
My Cannabis sprouts are growing, and I just found this tiny Mantis on one of the plants.
How you want your letter signed: Constant Gardener

Mantis hatchling

Dear Constant Gardener,
We appreciate your first submission of 2019 and we eagerly await more documentation of the insects associated with your 2019 crop.

What's That Bug? does not endorse extermination

Subject:  Mantis Ootheca and adult, female California Mantis
Geographic location of the bug:  Mount Washington, Los Angeles, CA
Date: 10/08/2018
Time: 5:30 PM PDT
We have a long overdue update on our She’s a Man-Eater posting.  Several days after the mating and cannibalistic meal that followed on our porchlight, Daniel relocated the female California Mantis in the genus
Stagmomantis (not sure if species is S. californica or S. limbata as both species are reported from Los Angeles) to the plum trees in back, and after a day, we could no longer find her, but we did locate this ootheca in the branches not far from where we released her.

Mantis Ootheca

Then we found a female Mantis nearby, but we cannot say for certain she is the same individual.  Now that January has arrived, the ootheca is still in place and it has still not hatched.

Female California Mantis

Female California Mantis

What's That Bug? does not endorse extermination

Subject: Cabbage White Caterpillars
Geographic location of the bug: Mount Washington, Los Angeles, California
Date: 12/16/2018
Time: 04:59 PM EDT
In late December, Daniel noticed that the leaves on the wild mustard that was growing in the garden looked as though he had eaten them, but he knew he did not want to begin eating the leaves on such young plants.  When Daniel eats the mustard greens, he generally only picks half the leaf, leaving being the central vein and half a leaf to help the plant gain strength.  These Cabbage White Caterpillars seem to have adapted to eating only partial leaves to minimize the damage to the plant, though still rendering the organic leaves unappetizing to many picky eaters.  Here is a Cabbage White Caterpillar from BugGuide.

Cabbage White Larvae

Cabbage White Larva


What's That Bug? does not endorse extermination