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8765 Vollmer Rd
Colorado Springs, CO 80908-4710
(888) 693-0578
(719) 495-2266


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(888) 693-0578
(719) 495-2266


All living beneficials will be sent by
2 Day Air or NEXT Day Air

Aphids Homoptera, Aphididae
There are many species of aphids known to be pests. Most species are similar in feeding habits and reproduction.

aphid.jpg (5122 bytes)

Feeding Habits
Aphids feed on plant sap by inserting their mouthparts into plant tissue. They excrete a sugary liquid, or honeydew. The honeydew not only clogs the pores of the leaves, but also encourages the growth of black, sooty mold, which can prevent light from reaching the photosynthetic tissue of the plant. Aphids weaken the plant by draining it's fluids, may cause severe distortion of growth, and are common means of transmitting plant viruses.

The body structure of aphids is simplified to perform only the functions of feeding and reproduction, while retaining the ability to walk. Even wings and flight muscles are dispensed with, except when these are needed to escape to a new food source. Thus all nutrition is directed to the needs of reproduction.

During favorable climatic conditions, all aphid young are born female and therefore all will contribute to population growth. The young are born fully formed and able to feed immediately. They grow rapidly, molting (shedding their skin) 4 times before they mature, often reaching maturity within a week. Because fertilization is not required, ova can start developing within an aphid as soon as, or even before, it is born. Young are then produced at a rate of 3 to 6 per day.

Within a greenhouse, environmental conditions are favorable, host plants are plentiful and the natural enemies of aphids are usually absent. An aphid population is therefore able to grow geometrically for a considerable period of time. (See the following sections for recommended release rates of bio-control items and pricing information.)

Green Peach Aphid (Myzus persicae)

The green peach aphid, Myzus persicae (Sulzer), is found throughout the world, including all areas of North America, where it is viewed as a pest principally due to its ability to transmit plant viruses. In addition to attacking plants in the field, green peach aphid readily infests vegetables and ornamental plants grown in greenhouses. This allows high levels of survival in areas with inclement weather, and favors ready transport on plant material. When young plants are infested in the greenhouse

Adult Female with Colony

and then transplanted into the field, fields will not only be inoculated with aphids but insecticide resistance may be introduced. These aphids also can be transported long distances by wind and storms.

Adults - Up to 8 generations may occur in the spring, but as aphid densities increase winged forms are produced, which then disperse to summer hosts. Winged (alate) aphids have a black head and thorax, and a yellowish green abdomen with a large dark patch dorsally. They measure 1.8 to 2.1 mm in length. Winged green peach aphids seemingly attempt to colonize nearly all plants available. They often deposit a few young and then again take flight. This highly dispersive nature contributes significantly to their effectiveness as vectors of plant viruses

The offspring of the dispersants from the overwintering hosts are wingless, and each produce 30 to 80 young. The wingless (apterous) aphids are yellowish or greenish in color. They measure about 1.7 to 2.0 mm in length. A medial and lateral green stripes may be present. The cornicles are moderately long, unevenly swollen along their length, and match the body in color. The appendages are pale. The rate of reproduction is positively correlated with temperature, with the developmental threshold estimated to be about 4.3 C. As aphid densities increase or plant condition deteriorates, winged forms are again produced to aid dispersal. The nymphs that give rise to winged females (alatae) may be pinkish. The dispersants typically produce about 20 offspring, which are always wingless. This cycle is repeated throughout the period of favorable weather.

Damage - Green peach aphids can attain very high densities on young plant tissue, causing water stress, wilting, and reduced growth rate of the plant. Prolonged aphid infestation can cause appreciable reduction in yield of root crops and foliage crops. Contamination of harvestable plant material with aphids, or with aphid honeydew, also causes loss. However, green peach aphid does not seem to produce the high volume of honeydew observed with some other species of aphids. Blemishes to the plant tissue, usually in the form of yellow spots, may result from aphid feeding. Leaf distortions are not common except on the primary host.

Melon Aphid -  (Aphis gossypii)

Melon aphid occurs in tropical and temperate regions throughout the world except northernmost areas. In the United States, it is regularly a pest in the southeast and southwest, but is occasionally damaging everywhere. Because melon aphid sometimes overwinters in greenhouses, and may be introduced into the field with transplants in the spring, it has potential to be damaging almost anywhere.

Egg: When first deposited, the eggs are yellow, but they soon become shiny black in color. 

Nymph: The nymphs vary in color from tan to gray or green, and often are marked with dark head, thorax and wing pads, and with the distal protion of the abdomen dark green. The body is dull in color because it is dusted with wax secretions. The nymphal period averages about seven days.

Adult: The wingless (apterous) parthenogenetic females are 1 to 2 mm in length. The body is quite variable in color: light green mottled with dark green is most common, but also occurring are whitish, yellow, pale green, and dark green forms. The legs are pale with the tips of the tibiae and tarsi black. The cornicles also are black. Small yellow forms apparently are produced in response to crowding or plant stress. Winged (alate) parthenogenetic females measure 1.1 to 1.7 mm in length. The head and thorax are black, and the abdomen yellowish green except for the tip of the abdomen, which is darker. The wing veins are brown. The egg-laying (oviparous) female is dark purplish green; the male is similar. The duration of the adult's reproductive period is about 15 days, and the post-reproductive period five days. These values vary considerably, mostly as a function of temperature. The optimal temperature for reproduction is reported to be about 21 to 27 degrees C. Viviparous females produce a total of about 70 to 80 offspring at a rate of 4.3 per day.

Damage: Melon aphids feed on the underside of leaves, or on growing tip of vines, sucking nutrients from the plant. The foliage may become chlorotic and die prematurely. Their feeding also causes a great deal of distortion and leaf curling, hindering photosynthetic capacity of the plant. In addition, they secrete a great deal of honeydew which provides a substrate for growth of sooty mold, so the quality of fruit may be impaired and the photosynthetic capacity of foliage further hindered.

Melon aphid effectively transmits potyviruses, although it is only one of dozens of species implicated in the spread of plant viruses in cucurbits. Cucumber mosaic virus, watermelon mosaic virus 2, and zucchini yellow mosaic virus are transmitted despite applications of insecticide and oil sprays, probably because the viruses can be transmitted within 15 seconds.

Potato Aphid - (Macrosiphum euphorbiae)

Potato aphids have both pink and green forms. This aphid is much bigger than the green peach aphid, and the adult has much longer cornicles and cauda and very long legs. Potato aphid colonies are made up of adults with offspring clustered around them, usually on the younger leaves. The potato aphid may occur alone, or in colonies with green peach aphid.

Top Left - Pink Potato Aphid

Far Left - Winged Potato Aphid

Right - Green Potato Aphid


Aphidius Aphidius colemani

  Aphidius is a small wasp (1/8") and is known to be very efficient in the biological control of aphids. Aphidius hunts for individual aphids throughout the crop. aphidius.jpg (46349 bytes)
The wasp pierces the back of the aphid with its ovipositor, leaving a small, barely visible reddish mark. They lay an egg in the aphid which, upon hatching, feeds without apparently affecting the victim for a time. From within the pest, the beneficial larva will glue the aphid to the leaf, and spin a cocoon from which it pupates. At this stage, parasitized aphids can easily be recognized as swollen, papery, and a silvery brown colored - also called a mummy. When the wasp is mature, it will cut a circular hole in the skin of the now dead aphid, and emerge as a winged adult

   Aphidius is supplied as a pupae inside aphid cases. normally, some will have already hatched, when received. Because of it's excellent search and detection capacity, small pockets and individual aphids can be easily found and destroyed, often before the grower sees any problem.

Aphid Midge Aphidoletes aphidimyza
   Sometimes called a 'midge larvae' or 'aphid midge', this tiny aphid predator is native to the northern parts of North America and Europe.

Aphidoletesaphidimyzalarvae.jpg (17834 bytes)

  Aphidoletes is sensitive to the length of day and will go dormant during the winter without supplemental lighting. As the adults emerge from their cocoons, they will fly and search for aphid honeydew to feed on. The adults are active only at night and during dusk. After mating (2 - 4 days after emergence), the females will deposit about 100 eggs near adult aphids. These eggs hatch out as small, orange larvae in about two days. The newly hatched larvae are as tiny as the egg they came from, but are capable of killing and eating aphids immediately.

   Depending on temperature and available food supply, the larvae will continue to kill and feed on aphids for 3 - 14 days. When the larvae have completed their feeding cycle, they will crawl down the plant, burrow into the growing media and develop into a cocoon. And the cycle repeats.

NOTE: In the media, they can be attacked & killed
if you are using Guardian/Lawn Patrol nematodes.

     Application Rate = 1 per 10 Sq. Ft. every two weeks

Part # Description Aphid Controlled Quantity / Pack Price -
5P390C Aphidoletes aphidimyza All Species of Aphids 1,000 $40.50
5P392 Aphidius colemani Green Peach Aphid, 
Melon Aphid & Other Small Aphids
500 $33.50
5P392 Aphidius colemani 2@500 $60.50
5P392A Aphidius colemani 1,000 $49.25
5P420 Aphidius ervi * Pea Aphid, Potato Aphid & Other Large Aphids 250 $75.95
Aphidius ervi pictured to the right  >

                    (*2 per 10 ft2; per week)

Aphididus / Aphei Mix - (Aphelinus addominalis, Aphidius colemani & Aphidius ervi)

A customized mixture of 3 parasites for broad spectrum control of aphids. This product contains the mummies of 3 different parasites: Aphelinus addominalis, Aphidius colemani & Aphidius ervi which will attack different species of aphids.

Part # Description

Aphid Controlled

Quantity / Pack Price -
5P392M Aphidius / Aphei Mix

 (2 per 10 ft2; per week)

25 different species of aphid including the most common pest species,
Melon Aphid (Aphis gossypii),
Potato Aphid (Macrosiphum euphorbiae) & Green Peach Aphid (Myzus persicae).
500 $66.95

Application Instructions - Open in the greenhouse. Walk around the area to be treated, holding the open tube at a 45o angle, releasing the emerged adults into the air. Distribute the adults evenly over the area. Recap the bottle and store at greenhouse temperature until more mummies have hatched. Repeat the distribution of adults throughout the area until most adults have emerged from the mixture. Finish by placing the open tube in the greenhouse next to a plant in case more hatch. Suitable for all greenhouse plants.


All living beneficials will be sent by
2 Day Air or NEXT Day Air
Aphidoletes & Aphidius spp.  are very sensitive to heat in shipping
During High Temperature Months (Typically May - August)
Next Day Air ONLY!!

Estimated Shipping Rates For Orders Shipped From Hydro-Gardens:

UPS 2nd Day 1 pound rate $25.00 - $40.00
UPS Next Day 1 pound rate $55.00 - $75.00
During periods of high temperatures, we will require next day shipping but we will split the freight with our customers. This is to guarantee the bugs arrive alive.
It's the only way when it's hot.

Ladybugs Hippodamia convergens
Ladybugs are probably the most universally known beneficial insect. They are found nearly everywhere and are regarded by many gardeners and farmers as a sign of general well being in the insect complex. They are usually most successful at aphid control, but also eat mites, scales, mealybugs and a whole host of other soft-bodied insects.

Ladybugs hibernate in the Winter months and also tend to go inactive during the hottest parts of the Summer. They are heavy feeders during the Spring and Fall which coincides with the times of highest aphid populations.

Application Rate = 1 Gallon will cover 1 acre or more.
1000 is adequate coverage for a home greenhouse

We have been told we can get Ladybugs again.
This might be for a limited time.

If you are looking for Ladybugs for Spider mite control, you have been misinformed.
You need to go with a spider mite predator instead, ladybugs don't work well for spider mites.

Part # Description Quantity per Pack Price -
5P330 Ladybugs 1,000 $5.95
5P330 Ladybugs 24@1,000 (Resale) $117.60
5P330C Ladybugs 1 Quart (15-17,000) $63.95
5P330A Ladybugs 1/2 Gal (30-32,000) $85.95
5P330B Ladybugs 1 Gal (60-70,000) $136.50


All living beneficials will be sent by
2 Day Air or NEXT Day Air
Everything but 1,000 qty is sent direct
from the Insectary by either 2nd or Next Day Air.
Based on temperatures, the insectary will choose the best way.

Estimated Shipping Rates For Orders Shipped
From Hydro-Gardens:

UPS 2nd Day 1 pound rate $25.00 - $40.00
UPS Next Day 1 pound rate $55.00 - $75.00
During periods of high temperatures, we will require next day shipping but we will split the freight with our customers.
This is to guarantee the bugs arrive alive.
It's the only way when it's hot.

Lacewings Chrysopa carnea

Lacewing1.jpg (8787 bytes)

LWlarvae.jpg (119327 bytes)

  At 80 F, the green Lacewing eggs will hatch in about 4 days. They hatch with a voracious appetite. In fact, they are so hungry, they often resort to cannibalism if there is no other food source available. Lacewing larvae will attack almost any soft-bodied insect. They feed upon small worms, insect eggs, mites, immature whiteflies, etc. However, the larvae are best known for attacking aphids and each is capable of killing 30 to 50 aphids per day. Many aphids are eaten but many more are killed by being punctured by the Lacewing larvae. Each larvae will feed for about 3 weeks, then will roll up into a little white pupae and emerge as an adult in about 1 week ready to mate and lay about 100 more eggs. The adult Lacewing does not feed on aphids. The complete Lacewing life cycle takes 4 - 6 weeks.

   To prevent a high percentage of the Lacewing population from being in the pupal, adult or egg stage at the same time, it is recommended that two or three releases, two weeks apart, be made. Lacewing larvae are good general predators and will also feed on whitefly larvae and other plant pests. Release instructions are included with your order.
                Application Rate = 1 per 10 pest insects

Part # Description Quantity per Pack Price -
5P335A Lacewing Eggs 1,000 $4.95
5P335 5,000 $15.95
2@5,000 $31.00
5P335C Lacewing Eggs on Cards 5,000 $19.95
5P335L Prehatched Lacewing Larvae 1,000 $20.95
5P331 Beneficial Insect Food * 8 oz Pack $8.50

            (* For Ladybugs, Lacewings & Others)



All living beneficials will be sent by
2 Day Air or NEXT Day Air
Lacewing larvae are very sensitive to heat in shipping
During High Temperature Months (May - August)
Next Day Air ONLY!!

Estimated Shipping Rates For Orders Shipped
From Hydro-Gardens:

UPS 2nd Day 1 pound rate $25.00 - $40.00
UPS Next Day 1 pound rate $55.00 - $75.00
During periods of high temperatures, we will require next day shipping but we will split the freight with our customers.
This is to guarantee the bugs arrive alive.
It's the only way when it's hot.

We recommend this handy 30X pocket microscope to aid in identification
of these and other insects. Part # 5E217 priced at just $9.95
click here to see a more information on this item.

Stiky Traps - Click Here for more information.

Many insects are attracted to the color yellow. These insects can be captured by hanging cards around your plants. Captured adults will not lay any more eggs on your plants. Yellow Stiky traps provide a means of controlling the flying stages of most pest insects.

"Fly-Barr" Insect Barrier - Click Here for more information.

When your exhaust fans are running, your intake vents are like a vacuum cleaner catching everything flying near the vents. Covering these intake vents with INSECT BARRIER will greatly reduce the introduction of unwanted pests into your greenhouse. Clean INSECT BARRIER reduces your airflow less than 5%.


All products & prices are subject to change at any time.

8765 Vollmer Rd
Colorado Springs, CO 80908-4710

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